Published by Mahmoud Hussein, Holding Company for water and wastewater - Manager of drinking water quality Department
What are the possible ways for reusing sludge produced from surface water and waste water treatment ?
It will depend on the amount of sludge you are talking about. If you want to add value to your sludge the best is to dry it (solar or thermal) and then used as fertilizer or source of energy.
Published by Juan Jara
wastewater Treatment has plenty Calofic Value and can be use as green energy pellets and water can be a process water....
Published by Danny Liufalani, DIRECTOR -Asia Pacific/Australia/New Zealand at Viroment Enerco US
Sludge from human waster processing plants and from water treatment plants are two entirely different processes. With water treatment in Florida lime stone is used to soften the water. Once the limestone rock breaks down to a baby powder it is pumped into a pit where it is dried then can be used as clean fill. Once laid out and dried the material goes back to its solid state giving an almost concrete base. I have been in the sludge hauling and landfill business in South Florida since 1972.
https://www.youtube.com/channel/UCvpAUeNAg2946-GlQqyUHrg?view_as=public
search for my video called Sludge King.
Published by David W Pressler, Owner President at DRD Enterprises Inc of Davie
Dear sir do you have any experience with bio catalysts till now ? or have you used bio organic catalyst ?
Published by Gautam Dandona, Technical Director- Applied Sciences at GDP Biotech
By adding bio-organic catalyst to the sludge it would make it odourless and usable as compost/soil. ............not all solutions have to be complicated. The attached image will explain how the technology works in principle. Feel free to ask any more info.
Published by Gautam Dandona, Technical Director- Applied Sciences at GDP Biotech
What is the sludge content? Btw, sludge here is the unwanted material which is filtered out . Therefore, why do you want to reuse it ? I'm asking because only with your answer detail, can I think of any way to reuse the sludge. Walter below points to disposal of sludge but you want to reuse it. Please disclose the application.
Published by Arindom Borah, NEPACK NE/Freelance - Chief Consultant
In my recent thesis work, I have summarized the possibile ways to optimize WWTP sludge treatment and disposal. Take a look here:
https://www.politesi.polimi.it/bitstream/10589/101303/1/2014_12_Malacrida.pdf
A case study is shown too.
Published by Walter Malacrida, Proposal Manager at Membrane
It is well known that sewage sludge can be activated by carbonization at high temperature or by chemical activation with mineral acids ( sulphoric acid). The obtained product can be used as adsorbent for the removal of organic and inorganic pollutants from wasewater and polluted water.
Published by M.Nageeb Rashed, Faculty of Science, Aswan University, Egypt - Professor of Analytical and Environmental Chemistry
Yes there is a way to detoxify it and convert it to be usable as a fertilizer, or just safely disposed. We have a specific blend of volcanic sulphate minerals that will detoxify the sludge, and convert it into safe and beneficial.
Published by Nissim Malul, President at Karma Integrity Inc.
The type of sludge we can used as the following:
Published by PHETLA MANGENA, Water quality at WEB Bonaire
After classifying the sludge, is where we can know the uses of particular/ certain sludge.
Published by PHETLA MANGENA, Water quality at WEB Bonaire
In my knowledge, the only sustainable way of reusing sludge is combustion.
Published by Sameer Dohare, Managing Director at EnviroChem Services (OPC) Pvt. Ltd.
Biological sludges generated by activated sludge treatment of human wastes may be land applied. Generally this material has limited value as a fertilizer because the nutrient concentrations are low. The sludge may be burned as fuel, but the resulting fuel value is also low. Sludge may also be composted although this process involves a higher processing cost. There are some newer technologies that are able to remove the nitrogen and phosphorus from sludge.
Published by Tom Mathews, Engineering Manager
Sludge is of different quality. it varies with what source/s and conditions of a sludge. Some Industrial Plants are re-using their effluent after the Membrane Biological Process as Process Water. Sludge per se after the complete oxidation of organic and inorganic wastes are mostly good source of agricultural protein. But it has to undergo a process otherwise it emits foul odour during decomposition process of organic/inorganic wastes.
Published by Edwin Ricarte, FMC Biopolymer - Process Engineer
Sludge can be used for agricultural crops, woodlots and landscape and recreational area.
I would also like to share article of "How the chinese are turning fecal sludge into black gold
Published by Kevil Vavaiya, Infrastructure Engineer
If it is not generated with sewage from industrial area, sludge can be used for agricultural purpose as a fertilizer.
Published by Muthukrishna vellaisamy Kumarasamy, Employee at University of KwaZulu-Natal
Depending on the type and nature of sludge, it has many applications such as agriculture (manure) the most used i guess.
Published by Shakeel Shah, GM [ JK enviro-serve ]