Phycoremediation

PHYCOREMEDIATION TECHNOLOGY APPLIED TO EFFLUENT TREATMENT

Consultancy for industrial effluent treatment

Dr V Sivasubramanian haspecialized in Algae based Research & projects relating to Industrial Effluents Treatment, Municipal Sewage Treatment, Wastewater Treatment, Algal Biomass Utilization and CO2 & NOx Mitigation by its Phycoremediation Techniques.

He can effectively manage a wide range of industrial effluents to achieve the following:

1. Reduction in COD, BOD, colour and odour 2. Reduction in Sludge 3. More than 90% reduction in operation costs 4. Less space requirment and no chemicals are used

Thrust Areas of Consultancy
1. Bioremediation of Industrial Effluents, Municipal Sewage, Wastewater and CO2 Mitigation in relation to Carbon Credits & NOx Mitigation.
2. Remediation and improvement of quality of Drinking and Recreational Waters
3. Consultation for the utilization of Industrial Effluents Sludge & Municipal Sewage Sludge for the production of Biomethane.
4. Consultation for the utilization of Algae Biomass for applications in Agriculture as Fertilizers, in Aquaculture as Fish-feed, as Pigments for Industrial Applications and as ingredients for Nutraceutical & Pharmaceutical Applications.
In today's highly polluted environment, a number of remediation methods are being employed to reduce the ill effects of pollution. Most of the Industries traditionally treat their effluents by chemical methods which are not only expensive but create toxic solid wastes in turn and it becomes difficult to dispose them. Phycoremediation, a technique employing algae, to treat industrial effluents and waste water. This new technology is not only safe and eco-friendly but it eliminates the accumulation of solid waste unlike in the chemical treatment. It is quite economical and at the same time oxygenates the environment by photosynthesis, hence CO2 mitigation. This methodology is quite useful in the removal of toxic waste including heavy metals, pesticide residues and other toxic chemicals.
VIAT is gearing up all its resources to become a Global Leader in the application of Phycoremediation Technologies in treating the effluents from the following:
Dairy Farms
•Fish Farms,
•Sugar Mills
•Paper Mills
•Breweries
•Distilleries
•Food Processing
•Refineries
•Chemical Units
•Tanneries
•Dyeing Industries
•Engineering
•Electroplating
•Domestic Sewag
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The following are the benefits of Phycoremediation:
1. Phycoremediation is a cost- effective, ecofriendly and a safe process.
2. The micro algae employed are non-pathogenic photosynthetic organisms and they do not produce any toxic substances.
3. Phycoremediation effectively reduces nutrient load thereby reducing TDS.
4. Phycoremediation reduces sludge formation to a very large extent.
5. Phycoremediation increases dissolved oxygen levels thorough photosynthetic activity.
6. Phycoremediation keeps bacterial population under control.
7. Algal growth in the effluent also removes waste CO2 from air there by contributing to the reduction of green house gases.
8. The algal biomass has high nutrient value and can be suitable as a live feed for aquaculture.
9. The algal biomass could also be used as a Bio-fertilizer and in EM (Effective Microbes) preparations.
10. Conventional chemical treatment of effluents results in concentrating the toxic waste in the form of sludge and requires landfill. Whereas
phycoremediation detoxifies and removes it for ever
11. Minimal odour compared to conventional methods of treatment.
12. Simple operation and maintenance
13. Construction and Operation Costs are typically less than half those of mechanical treatment plants (e.g. activated sludge, sequencing batch
reactors)
14. Sustainable treatment solution with significant potential for energy and nutrient recovery.
Phycoremediation
Use of algae for treating waste water and industrial effluents is termed as Phycoremediation which can also utilize and remove waste CO2 from the air through photosynthesis. Micro algae are superior organisms for remediation because a wide range of toxic and other wastes can be treated with algae and they are non pathogenic. The risk of accidental release into the atmosphere causing health safety and environmental problems is avoided when algae are employed for remediation. Algae utilize the wastes as nutritional sources and enzymatically degrade the pollutants. The xenobiotics and heavy metals are known to be detoxified/ transformed/or volatilized by algal metabolism.
Phycoremediation Technology is implemented in Three Phases viz: Laboratory Feasibility Studies, Pilot Plant Studies and Large Scale Commercial Plant.
Laboratory Feasibility Studies: Laboratory Feasibility Studies shall be undertaken by us in the First Phase which includes the identification of suitable Micro-Algae species for the bio-remediation of the Effluents at Lab Level apart from standardizing various parameters for optimization of remediation efficacy.
Pilot Plant Studies: After completion of Laboratory Feasibility Studies, Pilot Plant trials are undertaken. Construction of the Pilot Plant and Maintenance are carried out by the client under our guidance. Periodic Data are obtained from the Client as per our instructions for Monitoring.
Large Scale Commercial Plant: Upon successful completion of Pilot Plant Studies, guidance will be provided by us for constructing Large Scale Commercial Plant. Design, Construction & Maintenance are carried out by the client under our guidance. Periodic Data are obtained from the Client as per our instructions for Monitoring

Phycoremediation of industrial effleunts

WORLD'S FIRST PHYCOREMEDIATION PLANT

Dr V Sivasubramanian and his team have set up the First Phycoremediation plant at SNAP Industry at Ranipet, India. Algal remediation technology helps in pH correction of the acidic effluent and complete reduction of sludge. SNAP is now a zero disposal company. The phycoremediation plant has been in operation from September 2006. The effluent generated by the industry is highly acidic and of very high TDS ( 29000 mg/L). The entire effluent is evaporated using a slope tank. The algal biomass produced is utilized in Bio-fertilizer preparation and sold by the Company. The amount of CO2 removed during phycoremediation process is being calculated to claim carbon credits......Click here to know more about this success story....., CLICK HERE FOR NEWS ITEM IN DECCAN CHRONICLE ON EFFLUENT TREATMENT

OTHER INDUSTRIAL PROJECTS

1. SUNTEX PROCESSING MILLS, Chennai:

pH correction and decolorization of dye effluent: Laboratory level experiments have yielded encouraging results in decolourization and degradation of dye and pH correction of dye effluent using certain species of micro algae. Consultancy is being offered to field level application of this technology. Pilot plant is in operation at SUNTEX Processing Mills Pvt LTD in Gummudipoondi, Tamil Nadu, giving excellent results. Algal technology could correct the pH and prevent sludge formation. The dye bath effluent is being treated separately using micro algae. This technology is not only eco-friendly but also very economical. The complicated ETP process now being followed in various dyeing industries has been simplified. The algal biomass produced by the process is being used for composting and part of it is dried and used as a fuel. Since the process employs photosynthetic micro algae, the industry can claim carbon credits too....For a breakthrough in textile effluent treatment click here.

2. SVIS LABS Pvt LTD:

Svis labs India is a drug intermediate manufacturing company. This industry produces iso butyl actophenone from iso butyl benzene, which is a raw material for the manufacture of ibuprofen. The effluent generated is highly acidic (0.6 pH) and huge amounts of sodium hydroxide (NaOH) is being used for neutralizing the effluent. The industry generates 10 KL of effluent per day. Micro algal technology has been developed for effective pH correction of the highly acidic effluent generated by this industry. Scaling up is in progress.

3. WHEELS INDIA:

Wheels India is promoted by the TVS Group and was started in the early 60's to manufacture automobile wheels. Today, Wheels India has grown as a leading manufacturer of steel wheels for passenger cars, utility vehicles, trucks, buses, agricultural tractors and construction equipment in India. The company supplies 2/3rd of the domestic market requirement and exports 18% of the turnover to North America, Europe, Asia Pacific and South Africa. Pilot scale studies on the remediation of effluent generated by this electroplating industry using micro algae are complete.

4. Chemfab Alkalis Ltd. Pondicherry: 
The factory uses ground water during processing at various stages to extract useful chemicals from crude sea salt. The effluent water that is discharged has a very high salinity and TDS. Unit of Algal Physiology and Biotechnology carried out research work on treatment of waste water employing various species of micro algae including a few freshwater as well as marine forms to remove nutrients and bring down TDS. Successful results were obtained with immobilized cells of micro- algae. Work is underway to extend this technique to field conditions.

5. Orchid Pharmaceuticals and chemicals Alathur: 
Dr V Sivasubramanian visited the effluent treatment facility of the industry and started working on the possibility of employing algae for remediation. Another important breakthrough Dr V Sivasubramanian has made is in control of bio-fouling in the cooling towers of Orchid Pharmaceuticals using herbal extracts. The field trial was successful and regular supply of herbal product has been commenced. The group is in the process of patenting this herbal technique for control of biofouling.

6. Ultramarine and Pigments Ltd Ranipet:

This industry produces detergents and pigments. Phycoremediation technology is being employed to treat effluent from sulphonation plant. By this technology pH correction and sludge reduction are achieved without using any chemicals. MORE....

7. SAR CHANDRA ENVIRON SOLUTIONS, KAKINADA, ANDHRAPRADESH:

Algal technology is being employed to treat water effluent and sludge generated during oil drilling in sea (offshore and onshore). Micro algal treatment could successfully remove mineral oil from the fine sludge to less than 1% in pilot scale trials. Trials with 500 Metric Ton sludge were successful and scale up process is on.. MORE

8. Hindustan Coca Cola Ltd:

Algal technology to manage effluent generated at Coca Cola factory at Ahmadabad has been developed. After successful lab trials pilot scales trials are being started. Nutrient removal using micro algae is also being employed. Rapid removal of phosphates and nitrates could be achieved within 30 min of algal treatment.

9. Stahl India Chemicals:

Stahl is one of the world’s leading suppliers of leather processing products and also has strong positions in other selected market niche areas with proprietary products such as Permuthane®. Unit of Algal Physiology & Biotechnology under the leadership of Dr V Sivasubramanian has signed an MOU with STAHL INDIA chemicals to treat the effluent using mico algal technology. Effective removal of heavymetals has been achieved by the process of PHYCOVOLATILIZATION. Using algae to treat industrial effluents containing heavy metals presents an alternative to the current practice of using other biosorbents and physical and chemical methods. In this study, effluent was treated for the removal of heavy metals using the microalga, Chlorella vulgaris, which was isolated from the effluent itself. The results of the study show that after 8 hours, Chlorella vulgaris exhibited a better adsorption capacity under sunlight compared to laboratory conditions (i.e., 30.6 mg/g dry weight vs 10.5 mg/g dry weight, respectively). Similarly, reduction of heavy metals and mass balance in pilot-scale field studies conducted in a high-rate algal pond showed that the microalga, apart from adsorption, complexation, and entrapment mechanisms, is likely to possess phycovolatilization capability probably via biotransformation processes. Water Environ. Res., 83, 291 (2011). ( MORE)

10. Nichi -in Biosciences:

Dr V Sivasubramanian has signed a Memorandum of Understanding with the Chennai based Indo-Japan joint venture company M/S Nichi-In Biosciences (P) Ltd., for a multifaceted research project with emphasis on microbial biotechnology and environment safety to (i) develop technology for environment friendly plastic materials, (ii) find ways to safely dispose the plastic materials using microbes and to (iii) develop and validate polymers useful for water conservation in agriculture and horticulture.This agreement would enable them collaborate on a long term basis on the above areas, initially signed for a year and further renewable thereafter. (more)

A new application of a polymer in Phycoremediation

Dr V Sivasubramanian, jointly with an Indo-Japan joint venture firm M/S Nichi-In Bio Sciences (P) Ltd, has invented a new application of a polymer in Phycoremediation. Phycoremediation is the cleaning of polluted water mainly from industrial effluents using Algae (micro organism) so that the polluted water can be re-used or disposed in an environmental friendly manner. This invention is a breakthrough, which is likely to save the cost of the industries for such water treatment and above all eco-friendly. This is the result of an ongoing collaborative research started in July 2005 between the two. For more details log on to Nichi in website

11. Perfetti van melle India: Algal technology for pH correction and sludge reduction of effluent has been developed and based on successful pilot studies scaling up is being done. By employing micro algae with heterotrophic capability residual sugars have been removed very effectively and pH correction without chemical addition has been achieved..(more)

12. ARVIND MILLS: Phycoremediation technology has been tried at pilot scale tanks at ARVIND MILLS, Ahmedabad ( Naroda and Santej Units). Dye removal and reduction in BOD and COD have beenmonitored.

13. STERLITE INDUSTRIES (I): (One of the world's leading producers of copper): Phycoremediation technology is being tried at pilot tanks to correct pH and reduce sludge. A breakthrough in degrading spent engine oil effluent has been achieved using selected micro algae. MORE

14. Vani Pharma, Hyderabad: Algal technology is being implemented to treat the effluent and reduce BOD, COD and sludge

15. Shree Cements, Beawar, Rajasthan: Micro algal farm is being developed to produce biomass for fuel to be used kilns. MOU has been signed to cultivate micro algae in modified raceway ponds for flue gas sequestration.

16. Bioenergy - Pellet industry at Chandigarh: Pilot trials for reduction of BOD and COD have been successful and preparations are on for scaling up.

17. Chemical Industry at Ranipet, Tamilnadu: The industry produces organic acids and generates huge amount of acidic and high TDS effluent. Algal technology has been developed to correct pH by degrading residual organic acids in the effluent with significant amount of sludge reduction. 80 KL scaled up plant is being constructed and will be in operation soon.

18. TECHNO DRUGS, Ankhleshwar: pH correction, BOD and COD reduction achieved.

19. HMEL, Mundra, Gujrat: Petrochemical wasetwater is being treated with algae based technology at pilot scale level to reduce BOD, COD and sludge.

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SNAP ETP Plant - 100 reduction in sludge. pH correction

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Effleunt from a leather processing chemical industry. Sludge reduction and BOD, COD removal

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Effluent from a detergent factory - pH correction and sludge removal

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Chrome sludge from electroplating industry- Effective reduction of sludge and production of valuable algal biomass

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Textile dyeing industry effluent - Colour removal and sludge reduction with algal technology

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Textile dyeing effluent - Effective colour removal and reduction of TDS and sludge

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Textile dyeing effluent - Effective colour removal, BOD and COD reduction - Sludge reduction by algae based technology

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Effluent from a bioenergy industry - Colour removal, 95% redcution in COD and BOD acheived through algae based technology

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Dr V Sivasubramanian with CORE team at Pacific Rubiales pilot plant, Colombia

 

Sewage into energy

Dr V Sivasubramanian is exploring the possibilities of growing micro algae in domestic sewage to produce valuable algal biomass which could be converted in to biofuel. Sewage is an excellent source of nutrients for algae. Algal technology treats sewage effectively to produce valuable biomass and remove CO2 from air thereby helping in reducing global warming.Improvised photobioreacotrs have been setup and pilot trials are on. For more information click here

R/O REJECT and REJECT FROM DESALINATION PLANTS

Rejects from desalination plants and R/O plants are evaporated using SEPs and this generates huge amounts of sludge causiing enviornmental problems while disposal. Algal technology has been developed to effeciently treat R/O rejects with high TDS with a significant reduction in sludge. Micro algal species have been identified and developed by Dr V Sivasubramanian for this purpose and tested in field conditions

Industrial projects

Dr V Sivasubramanian and his team has implemented algae based treatment technology in industries in India and abroad. pH correction, sludge reduction/removal, BOD and COD reduction have been achieved through Phycoremediation MORE

 

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Colombian JVwith PERC