Bio-Sustainability Flashcards

1
Q

Sustainability, Bio-sustainability

A

social goal about the ability of people to co-exist
on Earth over a long time.

consists of fulfilling the needs of current generations without compromising the needs of future generations,
ensuring a balance btw economic growth, environmental care
and social well-being.

Bio-sustainability: The quality of being bio-sustainable
FAO - The production, use and conservation of biological resources,
With related knowledge, science, technology, and innovation to
provide information, products, processes and services to all
economic sectors with the aim of moving towards a sustainable
economy.

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2
Q

Organic farming

A

method of crop and livestock
production that involves choosing not to use pesticides,
fertilizers, genetically modified organisms, antibiotics and
growth hormones

Holistic system designed to optimize the productivity and
fitness of diverse communities within the agro-ecosystem,
including soil organisms, plants and livestock

International Federation of Organic Agriculture
Movements (IFOAM), an international organization made in 1972 for organic farming organizations defines the goal of
organic farming as:

“Organic agriculture is a production system that sustains the
health of soils, ecosystems and people. It relies on ecological
processes, biodiversity and cycles adapted to local conditions,
rather than the use of inputs with adverse effects. Organic
agriculture combines tradition, innovation and science to benefit
the shared environment and promote fair relationships and a
good quality of life for all involved”

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3
Q

principles of organic farming and who invented it, key highlight

A

Protect the environment: minimize soil deg. ,erosion, decrease pollution, optimize biological productivity

  • Maintain long-term soil fertility by optimizing conditions for
    biological activity within the soil
  • Recycle materials and resources to the greatest extent possible
  • Prepare organic products, by careful processing,
    and handling methods in order to maintain the organic integrity and vital qualities of the products
  • Rely on renewable resources in locally organized agricultural
    systems

Albert Howard ,Gabrielle Howard(1921),botanists, founded Institute of Plant Industry to improve traditional farming methods in India.

methods: Crop rotation,
Green manures and compost, Biological pest control, Nitrogen fixing organisms, Natural insect predators

key highlights
in 2015 central government
Mission Organic Value Chain Development for North East Region (MOVCD) and Paramparagat Krishi Vikas Yojana (PKVY)
* to assist farmers to
adopt organic farming and improve incentives due to
high prices.
*The Agri-export Policy 2018 also aims to help India emerge as
a major player in global organic markets.

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4
Q

poly culture and some examples

A

The science of Agroecology has revealed the benefits
of polyculture (multiple crops in the same space), which is
often employed in organic farming.

variety of vegetable crops supports a wider
range of beneficial insects, soil microorganisms, and other
factors that add up to overall farm health.

Biological process, driven by microorganisms: mycorrhiza, earthworms allows the natural
production of nutrients in the soil throughout
* Organic farmers use a number of traditional farm tools to minimize reliance on fossil fuels

In India, in 2016, Sikkim achieved its goal of converting to
100% organic farming.

Andhra Pradesh is promoting organic farming, especially
Zero Budget Natural Farming (ZBNF) which is a form of
regenerative agriculture

As of 2018, India has the largest number of organic farmers
in the world and constitutes to more than 30% of the
organic farmers globally

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5
Q

Organic farming Advantages and demerits

A

*Farmers can reduce their cost of production as no need for expensive chemicals and fertilizers.
*Pesticides are not used, hence healthier food & no residues
*Organic farms save energy and protect the environment in the
long term.
*Organic farming can slow down global warming.
*Protect Biodiversity (Natural habitat for animals & plants)
*Pollution of groundwater can be reduced.
*Soil is built with natural fertilizers in order to grow crops.
*Soil quality conservation is done due to crop rotation.
*Organic farming creates new living areas for wasps, bugs,beetles and flies by giving them water and food.
-No agrochemicals, No GMOS, Organic fertilizers

  • lower water consumption, increased soil organic matter, improved soil water holding

-Reduced soil loss, crop rotation,

  • large Floral, faunal, and microbiological biodiversity
  • Reducing the use of non-renewable resources
    -Tasty and Healthy food, high demand more nutrition, money thru exports

more labour intensive, thus more jobs

Inexpensive process but buyers sell at high profits

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6
Q

Indias major Export and certification of Organic products

A

flax seeds, sesame,
soybean, tea, medicinal plants, rice and pulses

increase of nearly 50 %
in organic exports in 2018-19, touching Rs 5151 Crore.

The centre is to strengthen the organic e-commerce www.jaivikkheti.in to directly link
farmers with retail as well as bulk buyers. has been one of the
major takeaways during the pandemic period.

Certification of organic product

two central programmes PKVY and MOVCD promote
certification under Participatory Guarantee System (PGS) and
National Program for Organic Production (NPOP)
targeting domestic and export markets.

The Food Safety and Standards (Organic Foods) Regulations, 2017
are also based on the PGS and NPOP standards

Jaivik Bharat / PGS Organic logos

look out for the logos of FSSAI

PGS Green
certification is given to chemical-free produce under transition to
‘organic’ which takes 3 years
PGS organic: Farmers which have completed full conversion period without any major or serious non-compliance in case mixed if 95% ingredients is PGS-Organic it can have this label

btw 95-70 it may be labeled as PGS-organic ingredients in this case PGS logo cant be used

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7
Q

types and techniques of Organic farming

and Smart Farming with internet of things

and applications of Smart Farming

A

Permaculture, Ranching, Hydroponics, Dryland farming

several damaging effects
of our ways in growing crops to the environment including the
flora and fauna.
*To restore the damages, people nowadays develop smart farming with IoT.

to bring more benefits also like higher profit, efficient planting process, premium
harvest and others.

Smart Farming
enhanced objects with technology in processing, sensors,
and more that can send and receiving data to
other networks.

examples of IoT in daily
activities like home automation to save energy,
traffic control, NFC tag, etc.

IoT in Smart Farming:
integration between technology and farmers’
skills is for the best quality and quantity of the commodity

some jobs are taken
by technology including sensors, drones, (AI), robotics to optimize the
process and to ease the farmers.

APPLICATOINS OF SMART FARMING:

smart farming with IoT is set up to overcome certain problems or to reach some goals

After setting up the technology, a regular check is
needed to see the technology performance and the
result.

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8
Q

Smart Mapping tech

A

Field Mapping or data collection:

Sensors to measure humidity,
temperature, light intensity, wind,
water/rainfall, soil composition

Predictive analysis:
Based on data required from field mapping,
several types of analytic software can predict and suggest the needed actions. some equipped with alert systems of discrepancies or pest attacks.

Data Saving
Using cloud-based, the obtained data are uploaded as a record for future decision making. also shareable for wider
area analytics.

Tracking and monitoring:
might require cameras, drones, tags, and GPS. Drones and cameras provide a visual of the field. Then, tags and GPS supply precise coordinate location of livestock.

Saving energy:
using automation, a system could be built to cut down energy consumption.
Smart irrigation;
could automatically turn the machine off when a sufficient amount of water
in the soil is reached. Drone-spraying only on the necessary spots could
prevent polluting the land.

Labour work: drones, and
robotics are can do labour work such as planting
seeds, watering the plant, harvesting, spraying the
pesticides, milking the cows, picking fruits, irrigating, and more.

Warehousing: In tropical areas like India, farmers utilizing solar-powered refrigerators to store the fruits, veggies right on the farm. Since greens and
fruits are prone to get withered, storing them in fridges directly is a smart way to provide fresh commodities.

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9
Q

Merits of Smart Farming and limitations

A

Improved products:
high-quality control and experiments, many farming ‘companies’ produce vegetables with a
certain taste that is different from others.
The greens mostly are categorized as organic and
pesticide free.

Precise data:
Assisted with tools, predictions or actions can be made of accurate data. crops rotation is easier to decide. The data can be saved and used as a reference in the
future.

Environmental friendly:
As farmers minimize pesticide use, irrigate water sufficiently, less waste, current farming damages are healing. in the future farmers could build a farm with varied commodities without
removing the endemic flora and fauna.

*Efficient management and cost-effective:
As many labor works are done by the technology, the management costs can be reduced or allocated to maintain the technology. The farmers could also be away, but keep controlling the farm from far away.

Merits
*technology brings positive impacts to farm management.
*As the products increase, more profit could be generated.
*Smart farming also helps farmers to distribute their
commodities to the most rewarding markets or buyers.
*Some software connects the farmers to connect with the nearest potential buyers.

Despite the gained earnings, farmers
should be aware also of the maintenance and installation costs.
*Hence, profit is relative and may differ for each farmer

LIMITATIONS
Without any regular care, technology is prone to get broken, could be a big loss

the maintenance cost is not cheap with updates and further research

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10
Q

Entrepreneurial opportunities of smart farming

A

start by identifying the goals and
what aspect you are focusing on.

prepare the money and choose the suitable technology, if finances dont support it you can try to collaborate with
researchers.

extensive research in this area leads to get the best crops.

Another way to find potential investors to expand the technology
To filed level.

After the technology is already set, maintaining smart farming is not at intervals.

More research regarding the actions to be taken and possible future technology must be carried.

many countries
like India, Japan,
Canada, Columbia,
Mexico, Brazil, Chile,
and Argentina are doing smart farming.

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11
Q

Vermi Composting and what process is it and earth worm species IMP ISA-2

A

composting in which certain species of earthworms are used to enhance the process of
organic waste conversion and produce => better
end-product

=>
mesophilic process utilizing microorganisms and earthworms

Vermicompost:
- the product of the decomposition process
- the cultivating of worms for this =>Vermiculture
- uses the mixture of
decomposing vegetable or food waste, bedding
materials etc
-turns kitchen scraps and other green waste into a rich, dark soil, smells like earth
-rich in nutrients which are water soluble and loaded with microorganisms that create and maintain healthy soil. and a and soil conditioner in a form
that is relatively easy for plants to absorb.
- provides a way to treat organic wastes more quickly

WORMS USED:
- red wigglers (Eisenia fetida),
- European night crawlers (Eisenia hortensis)
red earthworm (Lumbricus rubellus)

Red wigglers are recommended
,they have the best appetites and breed
very quickly

Worm castings are sometimes used as an organic fertilizer. the earthworms grind and uniformly mix minerals
in simple forms, plants need only minimal effort to obtain them

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12
Q

Vermi Compost at Home, and benefits to soil

A

kitchen scraps, worms, a
container, and bedding are required.

worms are quite sensitive to both light and noise, a
dark corner works best

Earthworms thrive at temperatures about 13°-25°C

worms needs a PH of 6.4

Bedding should be about 75 percent water and can be made out of strips of newspaper, grocery bags, egg cartons, composted manure, old leaves, coconut coir, or a mixture of any of these substances.
*The material must be clean and non-toxic.

benefits to soil

Improves soil aeration
* Enriches soil with microorganisms (adding enzymes)
* Microbial activity in worm castings is 10 to 20 times higher than in the soils as their gut conditions are favourable for the multiplication of bacteria
and the suppression of fungi.
* Improves water holding capacity and increase soil fertility.

Benefits in plant growth
* Enhances germination, plant growth, and crop yield
* Improves root growth and structure
* Enriches soil with microorganisms (adding plant hormones such as auxins and gibberellic acid)

Benefits for environment
*Bio-wastes conversion reduces waste to landfills
*Elimination of bio-wastes reduces contamination of other recyclables collected in a single bin
* reduces greenhouse gas emissions such
as CH4 and nitric oxide
Uses

*Soil conditioner: Vermicompost can be mixed directly into the
soil, or mixed with water to make a liquid fertilizer known as worm tea.

The implementation of cutting-edge practices
provides tools and techniques to drive climate-smart agriculture,
reduce carbon emissions, and lower the carbon footprint

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13
Q

Hydroponics

A

Greek words,
“hydro” meaning water and “ponos” meaning labour

concept of soil less gardening or hydroponics has been
around for thousands of years

ex: hanging Gardens of Babylon and The Floating Gardens of China

started experimenting with soil less gardening
around 1950

growth rate on a hydroponic plant is 30-50 percent faster than a soil plant, grown under the same conditions, and the yield is greater also

extra oxygen in hydroponic growing medium helps to
stimulate root growth

nutrients in a hydroponic system are mixed with the
water and sent directly to the root system. The plant doesnt have to search in the soil for the nutrients that it requires. nutrients are being delivered to the plant several times per day

hydroponic plant requires very little energy to find and break down food.
Plant then uses this saved energy to grow faster and to produce more fruit.
also have fewer problems with bug infestations, funguses and disease

uses considerably less water than soil because of the constant reuse the nutrient solutions

can be fertilized with organic or chemical nutrients

Most plants can grow within a pH range of
5.8 to 6.8, 6.3 is optimal
pH in a hydroponic
system is much easier to check than the pH of soil.

since it doesnt use no topsoil, topsoil
erosion isn’t even an issue

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14
Q

growing mediums

A

A fast draining medium, such as Hydrocorn
* Hydrocorn is a light expanded clay aggregate
* It is a light, airy type of growing medium that allows plenty of oxygen to penetrate the plant’s root system

Rockwool has become an extremely
* Rockwool was originally used in construction as insulation.There is now a horticultural grade of Rockwool.
* Since Rockwool holds 10-14 times as much water as soil and retains 20 percent air it is used

other mediums used are perlite,vermiculite and different grades of sand

three mediums are stable and rarely effect the pH of
the nutrient solution
though they tend to hold too much moisture and should be used with plants that are tolerant to these conditions

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15
Q

characteristics of Hydroponic Systems

A

characterized as active or passive,recovery or
non-recovery
ACTIVE:
actively moves the nutrient solution, usually using a pump
PASSIVE:
rely on the capillary action of the growing medium or a wick and passed along to the roots by absorption

usually too wet and do not supply enough oxygen to the root system for optimum growth rates
RECOVERY:
or recirculating systems reuse the nutrient solution
NON RECOVERY
nutrient solution is applied to the growing medium and not recovered

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16
Q

Rain Water Harvesting

A

collection and storage of rain

collected from a roof-like surface and sent to a tank, cistern, deep pit (well, shaft, or borehole), aquifer or a reservoir with percolation

simplest and oldest methods of self-supply
of water for households

However, larger systems for schools, hospitals etc is costly only able to be financed by companies, organization and governmental units

reducing the need
for clean water in water distribution systems, less
generated storm-water in sewer systems, and a less in storm-water runoff polluting freshwater bodies

benefit for both water
supply and wastewater subsystems

Tamil Nadu was the first state in India to make rainwater harvesting compulsory for every building to avoid groundwater depletion

Bangalore, Karnataka, adoption of rainwater harvesting is
mandatory for every owner or the occupier of a building having the site area for newly constructed building measuring 30 ft × 40 ft and above dimensions

Bangalore Water Supply and Sewerage
Board has initiated and constructed “Rain Water Harvesting Theme Park” in the name of Sir M. Visvesvaraya in 1.2 acres of land situated at Jayanagar, Bangalore

17
Q

Components of a rain water harvesting system:

A

Catchments: a water harvesting system or water can be collected from rooftops
2. Coarse mesh: at the roof to prevent the passage of debris
3. Gutters: around the edge of a sloping roof to
transport rainwater to the storage tan
4. Conduits: are pipelines or drains that carry rainwater from
the catchment or rooftop area to the harvesting system
5. First-flushing: a valve that ensures runoff from the first spell of rain is flushed out and does not enter the system. This is important because the first rain carries a relatively larger amount of pollutants from the air and catchment surfaces.
6. Filters: removes suspended pollutants from
rainwater collected over roof. a chamber filled with filtering media such as fibre, coarse sand and gravel layers to remove debris and dirt from water before it enters the storage tank or recharge structure.

18
Q

advantages of rain water collection

A

Advantages:
* It provides water when a drought occurs, can help mitigate flooding of low-lying areas, and reduces demand on wells which may enable groundwater levels to be sustained
* Simple installation
* Easy to operate and maintain
* Needs no power and operates at low gravity pressure (0.1
bar upward)

The system is capable of providing a constant flow of about 40 litres of rainwater per hour, enough for drinking, cooking and bathing purposes
* Maintains nearly constant volume irrespective of water
pressure
* Cost per 1000 litres is as low as US$ 2 to 3

18
Q

BioFuels

A

a renewable energy source, made from organic
matter or wastes can play a valuable role in reducing
CO2 emissions.

Biofuels can be produced from plants or from
agricultural, commercial, domestic, and/or industrial wastes

largest sources of renewable energy

In the transport sector, they are blended with
existing fuels such as gasoline and biodiesel.

low-carbon alternative to
fossil fuels as they could help to reduce greenhouse gas

Production of bioethanol and biodiesel from crops (is well developed), other feedstock resources have
shown high potential to provide efficient and cost-effective alternatives.

MOST COMMON:
bioethanol and biodiesel

microbial fermentation can be engineered to increase the product yield and expand the chemical space of biofuels through
rational design and fine-tuning of biosynthetic pathways => designer fuels

Adv
Efficient fuel
Non-dependency on fossil fuels
Durability of vehicles’ engine
Easy to source Renewable
Reduces greenhouse gases
Lower levels of pollution

Dis
High Cost of Production
Huge amount of crops for biofuels
Water use
Land use
Dependent of weather
Use of Fertilizers for the crop production

India’s biofuel production accounts for only 1% of the
global production

2nd largest producer
of sugarcane in the world but only about 1%
of global ethanol production

Jatropha seeds were used to produce biodiesel,
but the production wasnt consistent
* Farmers were encouraged to plant Jatropha, but the yield
was far below what was expected
* led to raw material cost expensive,
making biodiesel even more expensive than actual diesel

CHEMOTROPHS AND PHOTOTROPHS
* Chemotrophs eat phototrophs (green plants).

19
Q

Generations of Bio Fuels

A

First-generation or conventional biofuels are produced from edible energy crops as sugar-based crops (sugarcane, sugar beet, and sorghum), starch-based crops (corn, wheat, and barley) or oil-based crops (rapeseed, sunflower, and canola).

However, the production of first-generation biofuels has raised serious concerns:
DISADVATAGES:
(the food versus fuel debate),
○ ethanol production from corn grain requires significant consumption of fossil resources thus
minimum benefits from the carbon emissions , and
○ requirement of land to grow corn.

Second-generation biofuels are made from various types of biomass/lignocellulosic crops

BIOMASS
- from plant materials, but can also include animal materials.
- any source of organic carbon that is renewed rapidly in carbon cycle

allows lignin and cellulose of a plant to be separated so that cellulose can be fermented into alcohol.

Third generation

The microalgae are seen as
a good alternative for the production of fuels due to their high photosynthetic conversion efficiency

Algae leads to the production of all types of biofuels suchas biodiesel, gasoline, butanol, propanol and ethanol with
high yield, 10 times higher than the 2nd gen biofuel.

Fourth-generation
amalgamation of genomically prepared microorganisms and genetically engineered feedstock

Cyanobacteria are engineered to increase the oil yield and are used for the efficient production of bioenergy.

The implementation of bioengineering principles to modify algal metabolism and properties to enhance the oil content
in the cells.
* The 4G ecofuels are the fuels that are got through fixed
carbon from the air by new techniques

Currently the following types of biofuels are produced
using different approaches
Biogas
Syngas
BioEthanol
Biodiesel
Green diesel
Bio-ethers

20
Q

Bioethanol and Biodiesel

A

the most interesting biofuels due to its positive impact on the environment, it is
mostly produced from sugar & starch-containing raw materials.

tho various available types of lignocellulosic biomass
such as agricultural and forestry residues, and herbaceous
energy crops could serve as feedstocks for the production of
bioethanol.

common method for converting biomass into ethanol is called fermentation when microorganisms (e.g., bacteria and yeast) metabolize plant sugars and produce ethanol

Biodiesel: a liquid fuel
from renewable sources: new and used vegetable oils, animal fats and is a cleaner-burning to replace
petroleum-based diesel .
* Biodiesel is nontoxic and
biodegradable and is produced by alcohol with
vegetable oil, animal fat, or
recycled cooking grease.

in india bio-diesel is being produced in the country
primarily from imported palm stearin oil.

21
Q

IoT

A

Apps with advanced computing to run advanced application

Phones with various sensors:

for production management, climate control, molecular
diagnosis, education, data management

Sensors etc are fitted to production equipment and networked by computers to give a lot of data

field has evolved due to ML, sensors, better powerful embedded systems

Main part: intellgent app/software, operations occur with very less operator intervention

currently machines predict failures and proceed with repairs autonomously

Software adjusts machinery if it detects measurement has deviated from acceptable changes.

22
Q

4 ways biotech and pharma can benefit from the IoT today.

A

Motion Terminal: first
valve to be controlled by apps.

by combining mechanics, electronics, and software in a cyber-physical system.

Preventative maintenance
ability to analyze streaming data to assess conditions, warning signs, prior service equipment due to failures, prevents
costly downtime

  • Strategically scheduling preventative maintenance when equipment not in use

health crisis such as Covid
can used autonomous system AKA closed system which can sense’ and ‘act’ towards a biological condition

System Diagnostics:
Data and insights from an IoT-enabled manufacturing system can provide real-time intelligence about current component and system state.

*Failure events can often be pre-empted with the use of data.

when failure does occur, human reaction time is faster due to real-time data. Production can be stopped faster, thus less wasted product.

Modular automation:
demand for short product development times and customized products.

can be achieved by dividing a complete plant into functional units

Production modules can be joined to produce specific process plants which can then be extended by modules. this enables immediate
change in market and production requirements

23
Q

Microalgae bio refinery

A

platform of microalgae biomass => biofuels, bio-based chemicals, biomaterials, and
bioactive substances.

IoT/Techonology such as monitor, automatically control, precisely predict microalgae production.

Commercialization industrialization of microalgae bio
refinery heavily rely on the capability and efficiency of
large-scale cultivation of microalgae.

ADV USING IoT

  • helps real-time monitoring of microalgae biorefinery process parameters.
  • assists in sufficient data collection to make smart
    prediction and decision.
  • promotes automation in microalgae bio refinery.
  • guides microalgae bio refinery towards low-cost and high efficiency.
24
Q

Bioremediation

A

biological organisms are
used to remove or neutralize an environmental pollutant by
metabolic process.
INCLUDE:
microscopic organisms:
fungi, algae, bacteria,
AND PLANTS

Bioremediation has the mechanism of:
physiological abilities to degrade, detoxify, or render the contaminants harmless. mineralize or transform more toxic pollutants to a less toxic.

use of naturally occurring or deliberately introduced microorganisms to degrade the pollutants and convert them into less toxic/non-toxic form.

25
Q

Bioremediation definition

A

“Bioremediation is a waste management technique that includes
the use of living organisms to eradicate or neutralize pollutants
from a contaminated site.”

*“Bioremediation is a ‘treatment techniques’ that uses naturally
occurring organisms to break down harmful materials into less
toxic or non-toxic materials.”

26
Q

Types Of Bioremediation

A

ex situ, in situ

ex situ:
physical removal of
contaminated material and its transportation to another area for
further treatment by bioreactors, land farming, or composting,

split into:
Solid:
land farming
composting

Slurry bioremediators:
Bioreactors

in situ:
involve treatment of contaminated material in
place.

split into:
Intrinsic, and
Engineeredbioremediation

Bioaugmentation
Biostimulation
Bioventing

27
Q

Bioremediation techniques

A

Bioaugmentation: Addition of bacterial cultures to a
contaminated medium; used in bioreactors and ex situ systems

Biostimulation: Stimulation of indigenous microbial
populations in soils or groundwater by adding nutrients to the existing bacteria; which can be performed either in situ or ex situ

Bioreactors: Biodegradation in a container or reactor; may be used to treat several
liquid wastes or slurries but relatively high capital and operational cost

Bio venting: treating contaminated soils by
drawing oxygen through the soil to stimulate
microbial growth and activity

Composting: Aerobic, thermophilic treatment process; can be
performed by using static piles, aerated piles, or
continuously fed reactors; extended treatment
time

Land Farming: Solid-phase treatment system for contaminated soils; may be performed in situ or in a constructed soil treatment cell; cost-efficient

28
Q

Bioremediation Process and ADV and DIS

A

can operate under aerobic, or anaerobic deg of recalcitrant molecules by specific microorganisms

Mainly microorganisms, microbial or plants or its enzymes are used
to detoxify contaminants in the soil and other environments.

ADV
- ecofriendly, treats pollutants like pesticides, oils, solvents, petroleum products,

  • helps in removal of contaminated ground water cleanup, Toxins from soil, water etc
  • residue of the bioremediation process, such as H20, CO2,
    cell biomass, is harmless
    to environment
  • natural process of removing pollutants
  • Suitable microbial populations can degrade wide range of contaminants,
    from hazardous to harmless.
    ● potential threats to human health and environment are
    minimal

DIS
- operates under specific conditions which may not be present in field where pollutants exsit

  • not mandatory that microorganism-treated toxins can be entirely turned into harmless compounds
  • not for all pollutant and only for biodegradable substances
  • effectiveness is sensitive to microbial growth, and other environmental parameters of the site
  • requires more time than any other treatment
29
Q

Bioremediation examples

A

VERYYYY IMPPP NAME
Ananda Mohan Chakrabarty
genetically engineered a new species of Pseudomonas
bacteria (“The Oil-eating
bacteria”) in 1971 at general electric new york

Crime scene cleanup:
cleanup of blood and bodily fluids(pose health risks: hepatitis,HIV, MRSA.),

thus use enzyme
cleaners to rid the scene of harmful substances.
ex: Aftermath does this

The cleanup of contaminated soil:
Microbes utilize chemical contaminants in the soil as
an energy source and, through oxidation-reduction reactions,
metabolize the target contaminant into useable energy for microbes.

Oil spill clean-up: The Deepwater Horizon oil spill that happened in 2010, where 3.19 million barrels of oil spilled off the Gulf of Mexico.

due effectiveness and lower cost of bioremediation
2 METHODS WERE USED:
Bio-augmentation: injection of a small amount of oil degrading microbes into an affected area

Bio-stimulation: The addition of nutrients to stimulate the growth of innate oil-degrading microbes to increase the rate of remediation.

There are species of marine bacteria in several families,
including Marinobacter, Oceanospiralles, Pseudomonas,
Alkanivorax,
can eat compounds from petroleum as part
of their diet.

●there are at least seven species of bacteria that can
survive solely on oil.

30
Q

Phytoremediation

A

●Toxic metal contamination of soil is a major environmental hazard.

Chemical methods for heavy metal’s (HMs) decontamination such
as heat treatment, electroremediation, soil replacement,
precipitation and chemical leaching are generally very costly and
not be applicable to agricultural lands

THUS

phytoremediation is used:
based on the use of
hyper-accumulator plant species that can tolerate high amounts of
toxic HMs present in the environment/soil.

uses green plants to remove, degrade, or detoxify toxic metals.

helps clean up polluted environments,
including soils, groundwater, and marine environments. can include bacteria, fungi, algae, and plant species.

● capable of metabolizing, immobilizing, or absorbing
toxic compounds from their environment.
●major advantage it that they are less harmful to the environment with minimum or no by-products

IMPP
5 types:
phytostabilization
phytodegradation rhizofiltration phytoextraction
phytovolatilization.

31
Q

Phytoremediation

A

bioremediation process that uses various
types of plants to remove, transfer, stabilize, and/or destroy contaminants in the soil and groundwater.