In our project area, we are generating 35 MLD greywater daily.
What is the best technology available to treat greywater and reuse for irrigation purposes?
I would like to know the feasibility of these technologies, as well as economical details. If someone has reused greywater in practical situation please share your case studies and treatment details.
For highly purification you can look into membrane technology like MBR. Grudfoss has aslos developed a system: http://www.grundfos.com/about-us/news-and-press/news/turning-domesticwastewaterintoirrigationwater.html
Hello , As you see by my picture here on the side I am sitting with one of my old friends, who is a chief in Ghana, where I live and work almost half of each year. In my companies in the states we have developed two technologies that deal with your problem. The first and most economical is Electro-coagulation, which is a technology that operates off of a simple 110 volt electric system. Go to www.eco-web.com then Editorials tab and finally Authors tab and go to the 9th to the 12th papers and you can read about it. Also on that same site is a white paper on our technology called the Plasma Incubator Reactor. It is more expensive but it can handle the entire sewage output of a small city in Africa, to read about it go to www.abescousin1.com or email me a gerrybeagles@aol.com and my US phone is 916-877-1553.
It depends on the standards that must be met. I was on a team who designed a simple greywater filtration system to meet the NJDEP standards for both irrigation and evaporation towers. I sent you a connection request so we can talk in more detail.
Tout dépend de l'origine de production des eaux grises et ce qu'elles contiennent comme pollution.
Soit elles contiennent que des éléments "biologique" et alors un procédé de traitement biologique permettra de les épurer d'une façon convenable
Soit elles contiennent des pollutions chimiques et alors il n'est pas question de recycler ces eaux grises.
En me rejoigant sur ma messagerie :lyseconcept@gmail.com je fournis toute la documentation sur le procédé "Fosse Biologique"lyseconcept qui recycle immédiatement toutes les eaux usées ayant gardé toute leur caractéristique Biologique d'origine.
Everything depends on the original production of gray water and containing as pollution.
Either they contain only "organic" elements and then a biological treatment process will purify them in a suitable manner
Either they contain chemical pollution and so there is no question of these greywater recycling.
In rejoigant on my email: lyseconcept@gmail.com I provide all the documentation on the process "Organic Fosse" lyseconcept immediately that recycles all wastewater having kept all their Biological characteristic of origin.
Easy to know the answer if you give more details essentially whether or not this water is mixed with sewage or not and the details of chemical and biological analysis. The process could be as simple as ph adjustment snd filtration or sophisticated for the extent it needs a hill of money
Hi Kevil, I suggest you take a look at our web site we have a unique and natural solution that is economical, easy to apply and environmentally friendly. We are starting our entry in to the Indian market shortly. If you are interested I will provide you with our sales literture and we can discuss a possible test. You can reach me at mark.cohen@soleco-technology.com.
Hello, To get the best return of usable water from grey water, you should employ Tertiary Level wastewater technology with all the appropriate enhancement add-ons. If you set up the system correctly; you should have, at minimum, 95% clean finished product to re-use as needed ( not quite the best for potable drinking water) for all secondary water uses required.
This huge quantum of Grey water is a valuable resource which must be utilized to generate livlihood . The most economically and technical viabale system of wastewater treatment can be through Hybrid constructed wetlands which more close to socio-economic environmrnts of developing countries. HCW is sustainable and can also be designed on value addition interventions for livilyhood geration , enhancing bio-diversity and imroving the local ecosystem. Thereafter , the treated water should be used for irrigation purposes which is save .
You can use extended aeration lagoon process with opting for blowes to use solar energy . Secondly instead of direct air in to lagoon use Diffusers it will give better efficiency . After extended aeration you can also opt for physio chemical treatment for more clarity of water . This treated water after proper disinfection is fit for all reusable purposes.
We have a very interesting technology to offer on MAST (Microbe Algae Sewage Treatment). Though the reference is sewage it is used in treating any type of wastewater. The problem you have with grey water is high levels of Phosphates and no presence of Nitrates. Some nitrate addition will help.
Our MAST Technology achieves several aspects including BOD / COD / TSS reduction. Additionally the MAST is a carbon negative process, which means it pulls more carbon out of the air than it throws out. Secondly there is no need for external power to provide aeration. This happens with the presence of microalgae. Microalgae give out oxygen and the microbes take this up to grow. The microbes put out carbon dioxide that the microalgae need to grow. This is therefore a symbiotic relationship. This technology only requires 3 resources. Firstly nutrients that is provided by the greywater, secondly carbon dioxide that is available from the microbes as well as the open air and the third requirement is sunlight. This is available in ample quantity. The MAST Technology wastewater treatment plant produces biomass, which forms a revenue source for you.
Therefore firstly there is a savings in the form of very low energy requirements as no aerators need to be operated. Secondly the biomass produced from the operations provide a source of revenue generation. Thirdly as the project is carbon negative you can apply for carbon credits and sell them internationally. There is going to be a huge market after the Paris Climate Negotiations on carbon credit trading.
If you require more information on the way forward you can send me an email at advenvtech@gmail.com.
We need to know more from Chetan. Can you give more detailed explanation, as I am also in the drinking water segment and would love to adopt a non-electricity based cleaning methodology for grey water? Thanks. Chandrasekaran J from Watsan Enviroetch pvt Ltd www.watsan.in
Agricultural production provides income, employment and food at affordable prices as well as raw material for the processing industry and foreign exchange from exports. Creating a sustainable agricultural development path means improving the quality of life in rural areas, ensuring enough food for present and future generations and generating sufficient income for farmers.
Supporting sustainable agricultural development also involves ensuring and maintaining productive capacity for the future and increasing productivity without damaging the environment or jeopardising natural resources. In addition, it requires respect for and recognition of local knowledge and local management of natural resources, and efforts to promote the capabilities of current generations without compromising the prospects of future ones.
Consequently, economic and environmental sustainability, adequate farmer incomes, productive capacity for the future, improved food security and social sustainability are important elements of developing countries’ agricultural development.
Please find attached herewith treatment process & reuse of Grey wate.
You can use DEWATS for very economical solution. zero energy plant can be workout for agricultural reuse of water. contact us with further detail on jgoyani@yahoo.com
Good answers you have recieved, i think the treatment process should got from Oil traps follwed by filtration and disinfection, this could be the most economical and viable treatment.
We have developed a filtration system for treating this water and bringing it back to Class A water. I am thinking the best way would be to email information to you if you can send me your email address please
In most cases, no treatment is required. Usually, the graywater is too dilute to injure landscape plants. If the water is to me used for crops that is a different matter, and, depending on what's in the graywater, there may be a health issue.
If drip irrigation is to be used, some filtration may be required to prevent clogging.