Optimisation of Onsite Wastewater Treatment Systems

Published on by in Technology

I am currently working on decentralised options for water and wastewater treatment in my hometown.

What are the possible energy-efficient and cost-effective optimisation options for the onsite wastewater treatment system?

My intention is to treat (and reuse domestic wastewater) to at best drinking water quality.

The dominant onsite treatment system in the targeted area are the septic tanks. l am, thus, looking for alternative technologies or setups that can be adapted to reclaim wastewater from this system.

Taxonomy

26 Answers

  2. @Gerd.  what you said.   treat to bod 5 and cod 20.  large constructed wet lands with lots of fish.  in a well lit area.  lots of sunshine.  

     

    then use as raw water...chlorinate and coagulate.    glug glug glug    

     

     

  4. Dear Tendai, I have the Clarus Fusion STP, a factory manufactured unit of varying sizes that biologically treats grey and black water and then the effluent grey water from the system can be reused for irrigation etc. It is not potable but further treatment can render this so. Very low power consumption and an operate from solar. Please see my website www,maskamwater.com 

    We are based in RSA and have Dealers in Central and Southern Africa. At present seeking a Dealer in Zimbabwe.

    Regards,

    Chris.

     

    1 Comment

  6. To achieve the drinking water quality from wastewater. Please check the New Water in Singapore. It would be secondary process plus MF~RO or MBR~RO. Other process can't give you a drinking water quality.

    Answered on by

  7. To achieve the drinking water quality from wastewater. Please check the New Water in Singapore. It would be secondary process plus MF~RO or MBR~RO. Other process can't give you a drinking water quality.

    Answered on by

  9. Onsite (or decentralized) wastewater treatment systems are used to treat wastewater from a home or business and return treated wastewater back into the receiving environment. They are typically referred to as septic systems, because most involve a septic tank for partial treatment.

    The most common and traditional septic systems consist of a septic tank that gravity flows to a soil adsorption field for final treatment and dispersal.  The septic tank allows particulate matter to settle to the bottom of the tank so that large solids do not plug the drain field.  An effluent screen placed in the outlet of the septic tank is used to filter suspended solids out of the effluent.  Final treatment and dispersal of the wastewater takes place in the soil adsorption filed.

    A non-traditional system performs the same basic actions as the conventional septic systems.  Differences arise when location, space, laws and regulations, soil type, and/or quantity of wastewater being treated become a limiting factor.  A non-traditional system in this case refers to any OWTS that uses pumps or advanced treatment.  These systems use technologies that require greater frequency of operation and maintenance.

  11. RBC is our preferred offering for decentralised plant, its low power requirement coupled with easy maintenance and very stable process make it perfect for your application. It can be added to existing septic tanks too. The treated water is perfect for irrigation. We have WTP's for treating any water too

  13. you can treat with our biocleaner system to bod none detect and cod less than 5 ppm and tn at none detect and tp below 0.02. then  pass through limestone filter.    go through an up flow sand filter.   this will get rid of pathogens including helminth eggs.  there will be no odor from the water or from the plant.  no sludge to get rid of.  all green.  very convenient and no need to buy any chemical.  tiny energy foot print.    cheers

    1 Comment

  14. If you have locally available biomass such as waste wood, you can produce heat and energy on a small scale for each household or neighborhood via gasification.  The byproduct heat can distill your waste water to clean water.  This at the same time you provide electricity.  Neal@newrangepower.com

  15. Septic tanks or wetlands followed by subsurface drip irrigation will work well and be reasonable in price.

    1 Comment

    1. Rodney Ruskin Septic tanks are already in place therefore lam looking at options to reuse the effluent from such a system. 

      1 Comment reply

      1. Rachel Bohrer wrote a M.S. thesis on this subject in the year 2000.  It does specifically cover freezing conditions but most of her information covers all conditions.  This is an excellent study and even though technology has improved a little in the last 17 years it is well worth reading.  You will find it at:

        http://geoflow.com/wp-content/uploads/2017/02/bohrer_thesis_full.pdf

        If you need more information feel free to contact me at rr@geoflow.com 

  17. My personal view on the best option for decentralised wastewater treatment is to provide a shallow sewerage system preferably using gravity flow to a packaged modular treatment plant providing primary settlement and secondary membrane filtration, or biological treatment. The effluent from the treatment plant is nutrient rich and can be used for direct irrigation of agricultural crops, public and private gardens. The small fraction of demand requiring potable treatment can then be provided as point of entry treatment in individual homes and communal properties. This system will be much lower cost than treating the whole recycled supply to drinking water standards. I'm particularly interested in promoting this solution because it will require a higher level of distributed monitoring and this will be provided by sensors and actuators connected via IOT (Internet of Things) technologies.    

  18. Hello the process  "Biological pit " is all suitable for your search. A minimum of ground grip, a consequent volume for a purification performance of more than 98%. The liquid at the exit of the process must be rejected on a green outlet which supplements the purification treatment of the upstream biotechnology, purifying the soil of the dissolved pollution (the urine)

    Send an mailto Lyseconcept: lyseconcept@netcourrier.com 

  19. EEC Global Operation LLC www.eecusa.com Once we know the flow and inlet paramters we can take a look at the project and combined MBR and final effluent treatment so to make water suitable for human consumption. Send an email to EEC att: Bjorn Sundbakken at eec@eecusa.com 

  24. Redoxint project is patented and looking for development partner My prayer is to study carefully to understand the huge potential of the process I am looking for a financial or associate partner Here are some key phrases that describe the Redoxint project: 1. Completely ecological industrial platform without any gas emittion or other polluting materials. 2. Burning thousands of tonnes of household waste annually per furnace (without needing selection). 3. Alternative fuel production at competitive prices and in massive amounts. 4. Waste processing and industrial pollution neutralising of any kind (even burning gasses) 5. The re-launching and sustaining of the chemical industry on an ecological basis. Redoxint project introduces a series of novelties at conception, which requires design and simulation, in order to have a comprehensive view on technology Pollution appears when the technological progress reaches a level where it starts having a major impact upon the environment and the by-products management is not prioritised because of economic reasons. Massive gas emission with greenhouse effect are the result of a faulty attitude towards technology. In the same category one should include household and industrial waste management. The level of pollution is so high that a change in attitude is needed towards the environment. The Redoxint procedure is complex without being complicated, combines existing technologies with innovation and it is in one word: The Future. One of the most dangerous products for the environment are carbides. The release of carbon monoxide in the air is a big financial and energy related issue. The first patent that the Redoxing project is based upon describes a procedure and a processing equipment that processes carbides in a Tunnel Furnace. The Tunnel Furnace used as an electrochemical reactor provides result gases at reasonable temperatures for them to be used as primary raw material for synthesis processing equipments (Fischer-Tropsch, Urea). All these equipment can process huge amounts of gases that were released in the special temperature conditions specific to the Tunnel Furnace. Carbide production happens at very high temperatures and the energy produced by the electrochemical reaction can be used for burning the household waste. The released gases of this burning procedure (at more than 1000°C) will enter the synthesis processing equipment, without any gas being released in the atmosphere. The massive carbide production is justified by the use in the dehydration of ethyl alcohol obtained from the fermentation technology and cellulose producing technology. Both of them have alcohol in water as outcome. The second patent included in the Redoxint project deals with the utilisation of the carbide obtained in eco-friendly conditions for the dehydration of ethyl alcohol. The dehydrated ethyl alcohol is the alternative energy source of the future when the cost is regulated by the Redoxint procedure. Also the massive quantities of acetylene obtained is an exceptional raw material in the synthesis chemical industry. Acetylene is the raw material used in the chemical industry that leads to the production of all the organic products, from rubber to plastic materials and drugs, dyes, alternative fuel or synthetic fibres. I do not want to insist any further on the major importance of the acetylene, the main point is that acetylene is the most important raw material for the organic and synthesis chemical industry. At the end of the Redoxint production cycle, there are two main products: Ca(OH)2 (slaked lime) and the ash produced by the waste burning, both of them used as construction materials. The Redoxint project is a perfectly eco-friendly industrial platform which gives the opportunity for other processing equipments to be attached to the existing platforms for processing by-products and for utilising the renewable energy of the Redoxint platform. There can be attached biodiesel processing equipments (which use alcohol), food industry and construction material equipments. The Tunnel Furnace can even process chemical industry gas by-products. This kind of industrial platforms can be built anywhere in the world, no exception. The platform’s dependency is only on the amount of green-house gases that need to be processed and house hold waste that needs to be burned. By combining more production centres, the production can reach millions of tons of house-hold waste and just as much greenhouse gases that need to be processed each year. In the case that the Redoxint technology has to be extended, it is flexible enough to permit it. The amounts of dehydrated alcohol, biodiesel and synthetic fuel from the Fischer-Tropsch equipment are comparable at price with the conventional energy sources. Also in the case of several platforms combined, there is always the possibility of completely replacing the conventional energy sources. The Redoxint technology is exceptional through simplicity and through the combination of already in use technologies with innovative one on one industrial platform. The capacity of becoming highly modular and the adaptability of Redoxint is sufficient to allow the reshape of the existing technological industry platforms. Processing flue gases from the furnace tunnel in Solvay plant for seawater desalination offers the cheapest drinking water EXPENSES production are minimal, considering that all reagents are byproducts of peripheral tunnel furnace installations Such production's expense are transferred acetylene's expense with the raw materials and energy for desalination are theoretically zero Redoxint process used for seawater desalination has the lowest production cost and quantity of drinking water most between the previous process Redoxint process offers solutions for two fundamental requirements in desalination, low price, and the maximum quantities of desalinated water If there is already functional Solvay plant, construction furnace and peripheral installations are very easy to make In the case of chemical industry, one can imagine and adapt massive equipments for sea water desalinisation, massive construction material production (like concrete), and all the platforms that can be described as eco-friendly and with a good waste management. In this way, the Redoxint project makes neutralising and reusing of massive gas exhaust from a concrete plant for example, possible. Person of contact: ing.Pardi Zoltan Organization: REDOXINT Address: Alesd-Bihor RomaniaTel. 0723594373, email redoxint@yahoo.comhttp://www.linkedin.com/profile/view?id=186378912&trk=hb_tab_pro_tophttps://www.maven.co/maven/425268/profilehttps://www.innocentive.com/ar/workspace/challengeDetail?challenge=9933337 I am looking forward to hearing from you! Sincerely yours, Zoltan Pardi

  25. One of the best options for onsite decentralized treatment of domestic wastewater is constructed wetlands. It is a green technology, meaning that is based on the use of plants without using electro-mechanical equipment (maybe only a pump) or chemicals. For such applications it is ideal, since it is simple and very cheap system, especially during the operational phase, with minimum energy consumption. With a proper design, the effluent obtained can be of appropriate quality for reuse purposes, eg, for irrigation. You can replace the septic tanks with constructed wetland system or alternatively the wetland can receive and treat the effluent of the septic tank. Let me know if you need more detailed information.

    1 Comment

    1. Sure i need more detailed information on the wetland system. Is it possible to reuse the treated water for household purposes? My interest is reclamation for household use particularly drinking purposes.