Published by Dhiresh Sampat
I am looking for a cost-effective solution to treat wastewater from molasses. COD is in the range of 40,000 and conductivity is around 18,000-20,000.
Reverse Osmosis is too expensive.
The desired result is COD less than 120 and BOD less than 20.
What is the capacity? Anaerobic digester+ Aerobic treatment is recommended as the COD is high. Salt may be an issue however detail parameters will be helpful. Please discuss in details.
Published by Steve Li, Director at Fucheng Environtech (S) Pte Ltd
Hi, we're often used in conjuction with biotreatments to remove the remaining COD to reach compliance. Arvia is chemical free, sludge free and you don't need to replace any materials. If you want to use a cheaper biotreatment we can get the COD down from
Published by Rebecca Jeffrey, Technical Sales Engineer at Arvia Technology
Dear Dhiresh,
You will need a biological treatment to remove most of the BOD to the desired value, and depending on the treatment process and the HRT you could reach the COD too.
If the COD removal can not reach the COD value, you could use an AOP to obtain it.
If you need remove the dissolved solids (conductivity), then you will need other extra process as the RO, but been sure you have less than the maximun COD and BOD required values to send it to the inlet of the RO process.
The biological treatment can be anaerobic or aerobic, but if you use any anerobic step you will need at less one aerobic step to polish the BOD and COD before the effluent.
The anaerobic system does not use energy (or use just few), but is more complex to start up, operare or recover it after a shock, and you could need special skilled employees or at less a contractor or any other company to operate it.
The aerobic system in special MBBR use energy, but is a less complex system that can be used in this application after the anerobic system, or as the total biologic system.
If you will not use the anaerobic system, the configuration calculations and size of the MBBR will chance.
If you want use the anaerobic system, as an example you could think in the following process:
Biological Treatment (Anaerobic)>>Biological Treatment (MBBR1)>>Biological Treatment (MBBR2)>>Microfiltration>>AOP(Ozone just to reach the removal value if needed)>>RO (If needed).
More simple is more easy.
Regards,
Orlando D. Gutiérrez Coronado
Published by Orlando D. Gutiérrez Coronado
I have spoken to our tech boys and this is there answer
"In principal, we can solve the problem, but you know, we need water-samples.
Is the electrical conductivity expected to be reduced as well? In that case it can be done only by reverse osmosis."
If you want to go further with this please let me know at office@gictechs,com
Published by Stuart Beitler, Director at Environmental Solutions Worldwide Ltd
What is the flow rate? Is it a small stream or not? If it is not too big, then there could be solutions that can address the COD & conductivity simultaneously,, but if it is a big flow rate, then you are going to need a dedicated upfront biological process (preferentially anaerobic) to address the very high COD as it will be too expensive for the system that I have in mind. The anaerobic process will most probably have to be followed by an aerobic polishing step before you can even start considering to filter and feed a BWRO plant that will remove the dissolved salts.
In closing, do you have a better water quality?
Published by Louis Koen, Zutari - Technical Director
800 m3/day. This is spentwash from molasses..
Published by Dhiresh Sampat
We can remove organic material and colour from wastewater.
We would only give you a quote after analysing a sample (5 litres) of the waste and proving we can do what is required. We would also need the flow rate.
There is some information on our equipment on www.gictechs.com otherwise email me at office@gictechs.com.
Published by Stuart Beitler, Director at Environmental Solutions Worldwide Ltd
If this wastewater is spent wash (bottom product from distillation) after molasses fermentation, then only the 20 ppm BOD would be feasible - but not the 120 ppm COD - after high-rate anaerobic digestion and advanced aerobic treatment.
Published by Bruno Peeters, managing director at Model Engineering
Maybe just be aware that molasses by product liquor is a very good, but unbalanced, fertilizer. The sugar even if unfermentable, provides energy.
Published by JACK INGLE
cheapest way is by subscription. this is salinity between 11 to 12 ppt. cod of 40,000 and the color must be excess of 5000. with the proper tankage and piping, with no other electro mechanical capex, the total cost per m3 should be in the range of $2 given volume treatment.
Published by Eros Kaw, Biocleaner Inc. - Chief Tech Support
Dear Mr Sampat,
What you mean by waste water from molasses. If it is spent wash from distillery then 40000 mg/l COD is too low. Please identify the process.
Anaerobic treatment followed by aerobic treatment can give COD less than 120 mg/l
Please send the details for further advise
Rajendrakumar V Saraf, FIE, FIWWA
Chairman
Viraj Envirozing India Pvt. Ltd
21, Radhakrishna, Near SBI, Paud Road
Pune 41038
Tel 02025433445, 9822186763
Published by Rajendrakumar Saraf
Dear Dhiresh ,
You mean to treat Spent wash ? We had conducted R&D on it and get success by reducing 70 to 80 percent COD from Spent wash. It's a eco friendly liquid solution which will reduce the COD as well as settled down sludge which will be purely organic and you can used it again in different way .
Can you able to send some sample of your waste water so that we can check in our Lab and revert back to you. we will also provide you demo at your facility once we assure the result.
for more information we can communicate on
jalendu.pathak@omsaienterprise.in
Thanks with Regards,
Published by jalendu pathak, Waste Water Treatment & Waste Management
I don't think any courier will accept wastewater as international cargo.
Published by Dhiresh Sampat
where your plant is ? In which Country ? I can send you some samples along with it's MSDS sheet .
Published by jalendu pathak, Waste Water Treatment & Waste Management
Good day, we repurify any kind of wastewater, seawater, O&G water, etc with 95% efficiency warranted and cero emissions; the cost-benefit is very profitable in the short to medium term.
Is this the kind of solution are you looking for?
Kind Regards
Arturo
Published by Arturo Constante, Wastewater Purification - Zero Emissions
Hi. Best is Bio digester and use CH4 for energy and bottom sludges for bio-massed briquettes.. And water again for phyto r .. then enjoy using 100/10 wtr for veg flwr farms .. Prof Ajit Seshadri. Vels Unvrsty Chennai India ..
Published by Ajit Seshadri Seshadri, Er.
As others have mentioned - a great opportunity for a biodigester.
Our company has a 100% fully organic product that would massively lower COD/BOD. We have used this in Australia, US.A., Malaysia, India and China as well as Ireland.
This product also super charges biodigesters.
E, Hugh Pettman, Ph.D.
Published by E. Hugh Pettman, Employee at Biophysics Research Pte. Ltd.
Dhiresh Sampat. I have project of treatment of vinasse here in Brazil, State of São Paulo. The largest producer of sugar and alcohol in Brazil. In it, I include RO. It results in rearrangeable waste for farming or even for cattle feeding.
Being interested, please contact me: jalberto.correa@hotmail.com.
NOTE: The project was marketed with a sugar and alcohol plant, but under the conditions of the contract, we will be able to negotiate it again.
Gretins
José Alberto Corrêa Leite
Doctor Hydraulics and Sanitation
Wastewater Treatment - Bioenergy (fermentation) - Commercial intermediation.
Guariba - São Paulo - Brazil
jalberto.correa@hotmail.com
Skype: jacl091245
Tel: 55 (16) 3251-0873 Mobile: 55 (16) 99776-3551 and 55 (16) 9 8820-7032
Published by José Alberto Corrêa Leite, Independent Consult
Hi Dhiresh,
I did the same project with a new patented facultative technology.
The needed results was COD
Published by Ali Daneshvar, Chairman
Good candidate for anaerobic treatment (i.e. UASB w/Bio-gas recovery), followed by aerobic polishing. Very little sludge if aerobic sludge redirected to feed. WIll comply a 20/20 spec.
What is the flow? www.eecusa.com
Published by Bjorn Sundbakken, CEO at EEC Global Operation LLC
Hi Dhiresh,
We may have the solution for you low foot print high efficiency.
AOX alone or AOX + bio depending on Flow rate
I we have done similar wastewater in the past treating caramel with 3 time the COD level, so it should be possible to solve your problem.
If you require to return water to the process we can also offer FO solution
FO ----> fresh water to process
----> concentrate treated by AOX ----> potential rtn to FO
could be a true ZLD for your plant
For now I just need a flow rate and I can give you an estimate and we can take it from there
Let me know
Best Regards
Gerald
Published by Gerald Busca, Quazar Consulting Limited
Please base your estimate on 500m3/day.
Published by Dhiresh Sampat
500m3/day Ok I'll come back to you. We can also offer Fast AD systems I'll send some informationwhen I am back at the office.
Gerald
Published by Gerald Busca, Quazar Consulting Limited
Hello Dhiresh
Molasses waste is highly biodegradable and thus after initial pre treatment using biological system, you can bring down the COD to desired levels.
Kindly send us detailed inquiry on amit.levapor@gmail.com and We can provide you a conceptual process design to consider.
Published by Amit Christian, Levapor India Private Limited