Constructed Geological Filter system: Green ways for Zero Liquid Discharge

Transcription

1 5 th INDUSTRIAL GREEN CHEMISTRY WORLD (IGCW 2017) CONVENTION & ECOSYSTEM Emerging Tools, Technologies & solutions Zero Discharge Approach Constructed Geological Filter system: Green ways for Zero Liquid Discharge BY DR AVINASH M KADAM

2 ABSTRACT

3 Sugam Technology Partners Centpro Engineering Pvt Ltd RUSHI Ion exchange Pvt Ltd Vision Earthcare Pvt Ltd. Scaleban India Ltd.

4 Challenges in Indian chemical industry (In relation to water & wastewater) Availability of water / High water consumption Waste water treatment & Recycling Discharge of treated effluent (Brine) Disposal of solid waste generated during effluent treatment. Compliance of environment laws and international protocols. Inability to meet Pollution control norms & Zero Discharge. Public Awareness

5 Who are we? A. Techno-entrepreneur start up of an IIT Bombay alumnus B. Privately Limited company C. Year of establishment 2005 D. Expertise in all kinds of water and waste water solutions E. Dedicated team of Scientist and Engineers F. Dedicated for promotion of wastewater recycling in order to build water security. 5

6 What we do? Our Solutions Effluent Treatment Plant Zero Liquid discharge Sewage Treatment plant Lake Restoration & River Cleaning Grey Water Recycling 6

7 Industrial Applications MEE condensate treatment for Pharma and Chemical Industries. Pharmaceutical Effluent ( Formulation & API) Chemical Research Organizations (CRO s), Biotech companies Petrochemicals, & Pesticides Sugar Effluents& CPU s Textile, Dyestuff and Dye intermediates and many more 7

8 Zero Liquid Discharge: Approach Zero Liquid Discharge (ZLD) approach involves a series of processes (like membrane filtration, reverse osmosis, evaporation and crystallization) that extract pure water from industrial effluents, leaving behind sludge, dissolved solids, suspended particles and salt crystals Pre-requisite for ZLD needs physical and chemical treatment and followed by biological system to remove organic load. The treated effluents can be subjected for concentration and evaporation. The concentration method quite often involves the adoption of Reverse Osmosis (RO) and Nano Filtration (NF) methods. The evaporation methods involve incineration/drying/ evaporation of effluent in multi effect evaporators (MEE)

9 ZLD : Myth or Reality for MEE condensate

10 Problems related to ZLD While the benefits of ZLD are significant, adoption of the technology has two key environmental considerations: Energy consumption for the evaporation process Disposal of the solid waste. The energy cost for evaporation accounts for over 90% of the operational expenses of ZLD There is also the issue of dealing with the highly toxic rejects of a ZLD plant. Presently in Tamil Nadu, there are designated landfill zones (away from the industrial centers) for disposal of the sludge. This increase the cost for the manufacturers because they have to store the sludge (often for up to a year) before transporting it to far off locations, Problem arises with MEE condensate with low boiling point organics mostly industrial solvents with low BOD/COD ratio, making it difficult with conventional biological treatment

11 SBT Technology Credentials Indigenously developed by IIT Bombay Covered under US & Indian Patent Best Innovation Award by SIEMENS WATER ONE OF THE FOUR BEST INNOVATIONS Ministry Of External Affairs, Government of India Empanelled for Waster Water Recycling by Ministry of Defense, Government of India

12 SBT Layout

13 Scientific principle for SBT Chemical Oxidation: Combination of Advance oxidation process breaks down the complex molecules in the simpler form and subsequently, facilitates adsorption in SBT system as well as biodegradation Adsorption: The molecules gets adsorbed in the filter due to adsorptive properties of the filter media. Filtration: Chemical and hydraulic properties of the filter media helps in the adsorption of organic molecules and drains the fluid. The hydraulic loading carefully selected helps in the retention time of the fluid in the filter bed required for effective solid-liquid contact for adsorption. Biodegradation: Filter media which houses filter material, culture & catalyst helps in biodegradation of the adsorbed organic molecules which is essential for adsorptive site rejuvenation. Range of microfloraensures the microbial diversity required for degradation of various contaminants. It siprimarily aerobic oxidation coupled with some anaerobic pockets in the filter bed. Oxygen supply is ensured by catalytic oxygen supply as well by means of surface diffusion of atmospheric oxygen.

14 USP s of SBT system as against ETP Handles recalcitrant COD Work for BOD/COD less than 10% Effective against many non degradable molecules without addition of external carbon and nutrient Does not require frequent acclimatization period Effective against fluctuating chemical composition of wastewater such as Pharma-API, Biotech companies, CRO s etc. Low Maintenance cost No chemical suldge Odour - free Low energy requirement and Green environment are its unique features. 14

15 SUCCESS STORIES

16 CASE Study: Anupam Rasayan India Pvt. Ltd. (Surat) Gujarat Surat

17 Background of the Project AnupamRasayan is a manufacturer of Specialty Chemicals, with products catering to a plethora of market segments such as Agrochemicals, Anti- Bacterial, Polymers, Pharmaceuticals, Material Sciences etc. Product chemistry is majorly based on Phenol Derivatives. Major Constraints of their effluent was to treat Phenolic compounds, Before installing SBT they were facing lots of problem of degradation of Phenol as well as of very high cost of O&M in terms of Energy & Chemicals. After Installing SBT their Energy cost of treatment of effluent cut down by 1/10 with Phenol degradation of >90%.

18 SUGAM ZLD Approach for High COD / TDS Stream

19 SUGAM ZLD Approach for High COD / TDS Stream

20 Capacity Type of Effluent Area Anupam Rasayan India Ltd. (Surat, Gujarat): Unit I (75 KLD) 75 cum/d ETP MEE condensate (Contains Phenolic& PharmaDyes & Agro Intermediates) approx.650 m2 Date of Commissioning October 2014 Location Surat, Gujrat SBT GPCB SN Parameters Unit Influent Quality Limit 1 ph TDS mg/l < BOD mg/l <100 <100 4 COD mg/l <200 <250 5 Ammonical N mg/l <40 <50 6 PHENOL mg/l <2

21 SUGAM ZLD Approach

22 SUGAM ZLD Approach

23 Eytan Labs Ltd., Hyderabad Capacity 75 cum/d ETP Area Approx.450 m2 Date of Commissioning May 2015 Location Hyderabad SN Parameters Unit Inlet SBT Quality 1 Flow Cum/d 75.0 >72 2 ph COD mg/l 4500 <250 4 TDS mg/l < TSS mg/l <100-7 Ammonical N mg/l 100 <20

24 Shubhavastu Vasind, Thane Capacity 180 cum/d Area Approx.300m² Date of Commissioning August 2015 Location Vashind, Thane SN Parameters Unit Input Output 1 ph Dissolved Oxygen Mg/L ND Suspended Solids Mg/L <20 4 COD Mg/L <50 5 BOD Mg/L <10 6 Turbidity NTU <5.0 7 Fecal coliform* CFU/100 ml <10³

25 Saurav Chemicals Ltd. Punjab Capacity Area Date of Commissioning Location 15 cum/d ETP 40 sqm February 2012 Punjab SN Parameters Unit Input Output 1 ph TSS mg/l <50 3 TDS mg/l <1500 NA 4 BOD mg/l < COD mg/l <250

26 Zydus Cadila Healthcare Ltd. Ahmedabad, Gujrat Capacity Area Date of Commissioning Location 200 cum/d ETP approx. 725 m2 April 2013 Ahmedabad, Gujrat SN Parameters Unit Input Output 1 ph TSS mg/l <50 3 TDS mg/l COD mg/l <100 5 BOD mg/l <30

27 Pharma, Bulk Drug & Biotech Zydus Cadila, Ahmedabad Torrent Pharma, Dahej Eytan Labs, Hyderabad Symed Labs, Hyderabad Honour Labs, Hyderabad Our Clients USV Pvt Ltd, Mahad Adroit Pharma, Vadodara Saurav Chemicals, Chandigarh Color& Dyestff Colortext, Surat Supreet Chemicals, Vapi 27

28 Our Clients (Contd.) Sugar, Breweries & Beverages Rajaram Bapu SSK, Sangli Madhi Sugar, Madhi, Gujarat Speciality Chemicals Anupam Rasayan, Surat Ami Organics, Surat Yashashvi Rasayan, Dahej NOCIL, Dahej 28

29 Our Clients (Contd.) Petrochemicals & Pesticides Reliance IPCL, Vadodara UPL, Ankleshwar Philoden, Vadodara Sewage Treatment Torrent Pharma, Dahej Indofil Ltd, Thane Dreams Group, Pune Shahapur Infra, Shahapur Nash Industries, Bengaluru 29

30 CONTACT US SUGAM PARYAVARAN VIKALP PVT LTD SP House, Sreenath Residency Jaydeep Nagar, Opp. Nahur Railway Stn. Nahur East, Mumbai Dr Avinash Kadam Mr. Ankur Turakhia