M.tech thesis based on Zero Liquid Discharge in Wastewater treatment.

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I need help in the development of my M.tech thesis based on Zero Liquid discharge in Wastewater treatment. How can I develop my methodology to develop my project?  Please be my helping hand and help me in exploring this domain.

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13 Answers

  1. Dear Alok.

    I have been waiting for your response to 4 points given by Prof A B, 

    And pl do add as to how you could use re use water for campus greens and others uses like flush water for toilets. 

    You have a factory is it.. what 

    Well wishes.

    Ajit Seshadri .

    3 Comments

    2. Great..Use normal ETP, mechanised, multiple stages Etc..

      At the end, have a finishing polishing process, using phyto remediation using Elephant grass or cayhna indica multi coloured for aeasthetics of all stages of ETP plant, reactors dosing chmbrs et all. Can use large pot- planters.

      I day HRT maybe given for this tail end phyto-r  process. 

      Finish off with a day capacity, retention cum equalising tank . The final effluent may be used for plant use and secondary uses..

      Well wishes.

      Prof Ajit Seshadri. INDIA .

  2. Hi Alok,  also just wondering what you have in mind for zero liquid discharge.  Does this imply you need to contain all liquids at the treatment works.  In which case I see only one or two options - as Mike Bechtold said - evaporation of all the water in solar ponds, vacuum or with jet air sprayers (or by using waste heat if available); or secondly pumping it into the ground (and recharging an aquifer or pushing back a salt water/fresh water interface).  If however you mean zero sludge discharge but discharge of the treated wastewater, this is a totally different approach and there are a number of alternatives for producing a "dry" sludge while recycling or evaporating the extracted sludge water.

  4. Mishra ji.I think the following methodology will help you;

    1) Eind out your targets (Quality ,Quantity etc.).

    2) Find out influent & effluent parameters to & from WWTP.

    3) Try to find alternatives to treat effluents to make waste water reusable like use of Mechanical and Chemical treatment Ultra Filtration,RO,Evaporation or any other technology to achieve required quality parameters like TSS,TDS B.O.D &,C.O.D . Free ammonia etc.

    4) Evaluate alternatives techno economically based on practical viability.

    5) Choose the best alternative suiting to your objective & go ahead.

                 All the best for your upcoming project.

  5. A zero discharge wastewater treatment facility (WWTF) will require evaporation.  A good example would be to build a hothouse to receive the wastewater and use exhaust fans to go to odor control system to treat the odors.  So, you would use a lot of land and construction costs.  Alternative is to have a covered evaporation basins to prevent rain water to the evaporation basins.  You keep the depth of wastewater shallow and evaporation would dissipate to the atmosphere.  You will generate odors and depending on location, you might need to capture the evaporation and treat for odors. 

    I assume you meant no discharge to surface water or groundwater.  If you referring only to discharge to surface water, you have many options to dispose to groundwater.  

    1 Comment

  9. Dear Alok,

    i only can speak about vaccum evaporation system. This technology is suitable for ZLD (Zero Liquid Discharge) in industry.

    for instance, branch / wastewater typ :

    coating line / degreasing - phosphating - pickling

    mechanical / emulsion - crack detection

    just have a look

    https://www.kmu-loft.com/

    would you like more info ? are you interested in ?

    1 Comment

    1. Thanks for the information, Jean.

      Commented on by

  10. Dear Alok.

    @ Gernot Kayser  has rightly given the details that you should follow.

    Is it that you need to simulate a few wwt plants with ZLD realised for the effluent.

    ZLD is Zero Liquid Discharge ex site to external location.

    Even when the effluent is compliant on rules and regulation, it is required to be re-used at the site itself.

    Re use water is put to use for secondary purposes viz. wash water, irrigation requiremnt for campus greens and horticulture.

    Knowing the process and how waste water is evolved is important.

    You need to assess whether water usage can be reduced. And using natural means, can effluent be remedied using simple natural methods viz. Dewats process.

    The sludges realised too to be with neutral pH and no sediments are used for agri farm Etc.

    These methods can be employed for having ZLD in your wwt plant.

    Well wishes.

    1 Comment

    1. Dear Sir,

      Thanks for showing interest. I study at Central University of Jharkhand ( India) and I have been allotted a university supervisor but it seems my area of interest is not his expertise. I am enrolled in the Water Engineering and Management course. If I epitomize my study then it is all about Water resource development, conservation, and management.

      Currently, I am working as an intern at an organization that works in the field of Water and Wastewater engineering. It constructs high capacity STP and ETP with MBR and MBBR based technology. The STP is based on domestic sewage and reuse options are like gardening and irrigation.  But here too I am lacking guidance in thesis development for my Masters. It would be a great help if you just help me out. You can suggest any methodology which helps me. If you have any other idea of thesis based on hydrology, Watershed and Wastewater management that I can do remotely under your guidance then please suggest me. 

      I would be highly grateful to you and anticipating your positive response.

      2 Comment replies

      2. Pl send me a test mail... seshadri.ajit@ gmail.com ... w wshs .. 

        Manish Nema (mnema007@gmail.com) seshadri.ajitManish Nema (mnema007@gmail.com) 

  11. You need to define the parameters and scope of your study.  Help and suggestions are available, but right now your call for assistance assumes that we can read you mind.  We can't.  You have sent out a general call for assistance but without classification as to what you are working on.

    I'll be happy to help but I need to know what area you are working in.

    1 Comment

    1. Dear Sir,

      Thanks for showing interest. I study at Central University of Jharkhand ( India) and I have been allotted a university supervisor but it seems my area of interest is not his expertise. I am enrolled in the Water Engineering and Management course. If I epitomize my study then it is all about Water resource development, conservation, and management.

      Currently, I am working as an intern at an organization that works in the field of Water and Wastewater engineering. It constructs high capacity STP and ETP with MBR and MBBR based technology. The STP is based on domestic sewage and reuse options are like gardening and irrigation.  But here too I am lacking guidance in thesis development for my Masters. It would be a great help if you just help me out. You can suggest any methodology which helps me. If you have any other idea of thesis based on hydrology, Watershed and Wastewater management that I can do remotely under your guidance then please suggest me. 

      I would be highly grateful to you and anticipating your positive response.

  12. We had a client that required zero discharge because they could not receive NPDES permit or a POTW that would accept their wastewater. It was a metals manufacturing company, 100% of the water was recycled back into the plant process--for cooling. The sequence of equipment was an inclined plate clarifier, pH adjustment tank, and filtration of residual solids and clarification on a rotary vacuum drum then the treated water is returned to the standby water tank.  The flow was very small for this plant 10,000 gpd but the technology can be scaled up for larger flows. This is just one of many system designs that can be configured for "Zero Discharge".

  13. Dear Alok,

    first we should know where is your university supervisor - or is there none? Second what is your study? The focus of your thesis could be very different, depending on your study:

    1) An environmental managment study course will focus on legal rules, money and other ressources;

    2) a sanitation engineering course will focus on (bio?)reactor design and layout as well as on water loads and flows;

    3) an environmental biotechnology course will look in detail on the microbial and macro-biological processes controlling water purification and evaporation;

    4) a hydrology course will concentrate on flows and their interactions with natural waters (air humidity, rivers, groundwater)

    I am a lecturer at a university and at a constructed wetland wastewater treatment plant we did some research on zero liquid emission, already.

    1 Comment

    1. Dear Sir,

      Thanks for showing interest. I study at Central University of Jharkhand ( India) and I have been allotted a university supervisor but it seems my area of interest is not his expertise. I am enrolled in the Water Engineering and Management course. If I epitomize my study then it is all about Water resource development, conservation, and management.

      Currently, I am working as an intern at an organization that works in the field of Water and Wastewater engineering. It constructs high capacity STP and ETP with MBR and MBBR based technology. The STP is based on domestic sewage and reuse options are like gardening and irrigation.  But here too I am lacking guidance in thesis development for my Masters. It would be a great help if you just help me out. You can suggest any methodology which helps me. If you have any other idea of thesis based on hydrology, Watershed and Wastewater management that I can do remotely under your guidance then please suggest me. 

      I would be highly grateful to you and anticipating your positive response.