Re: [Green-India] Can Septic Tanks be converted to biogas plants?

[Manu Sharma]

Yusuf, this should be possible without requiring more space than allotted for septic tank. You may need to install a macerator to process input feedstock. The gas generated can be best used in thermal applications and slurry in parks / gardens. Biogas experts on the group will be able to guide you more on the design. 

If this isn't realized for some reason, the second option you may want to consider is worm based sewage treatment solution. Basically an aerobic tank with earthworms in it. This is low maintenance and works quite well. An Australian company specialises in this. You may be able to find Indian experts. 

Manu Sharma

Climate Revolution Initiative

http://climaterevolution.net

On 9 November 2012 00:45, Yusuf Turab <yu...@ytenterprises.com> wrote:

Dear Fellow Members

                      We are working on a green building project where apart from the usual green building certification activities, we are also involved in the water management. As per our strategy so far we plan to separate the black and grey water. The grey water (about 35-40K litres per day) will be filtered and pumped to the reed bed system on the roof of the building. This water will flow back down into the sump and will be used for landscaping and flushing.

We have decided to build large septic tank for the black water (about 15-20K litres per day)  but I was hoping we could find better use of the black water than just letting it go waste. After all the recent discussions on biogas, I was wondering if there is a simple way to build a biogas plant instead of the planned septic tank for the black water and maybe use the gas at the staff quarters.

The project has three blocks and total of 100 apartments. Thanks in advance.

Yusuf Turab
http://www.ytenterprises.com/

--
You received this message because you are subscribed to Green-India
to discuss India's Energy Future and Sustainable Living.
 
Green-India
http://green-india.in
 
Rules & Disclaimer (Important)
http://goo.gl/Te9d2
 
To unsubscribe, send email to
green-india...@googlegroups.com
 
 
 

[tee jay]

Hi,

A simple system which uses the "black water" and the food waste has been functioning at Kongu engineering collage, Erode, near your place.

I have also been studying systems installed at "sholai school" at kodiakkanal, and understand the ground reality -  A good system is possible.

Presently I am engaged at looking at rice husk gasification projects in Bihar and not available till end Dec.

I would be happy to discuss any details at chennai after my return (no financial implication)

please do post your experience, as i am collecting subjective information from as many installations as possible for making this a reality

teejay

--



T. Jayaraman
SECO Group
14, Bethel Nagar,
Perungudi,
Chennai 600096

Ph : off +91 44 2496 1434/ 2496 2995
Fax - +91 44 2496 2996  Home +91 44 2448 7684

Website : www.seco-india.com

Be smart - Be green

[Pragati Prasad]

Dear Yusuf,

       Sintex sells Bio-gas septic tanks. They are prefect, Good priced. If it is a large building, you gravity wont  take high concentrated Black water. So you need to think of multiple Bio-gas septic tanks, just below the toilets. You may also go for a Vacum toilets and sewer, then one main biogas septic tank is enough, then costs will only increase few percentage. You should also remember with vacume toilets are less water consuming? So save energy lot of energy costs in pumping water, of-course even though vacum toilets consume energy its minimal. You also recover maximum bio-gas. The water in vacume toilets are minimum, so a small wetland is enough to take the load. And you can simply use Grey water for your garden.

with regards,

Pragati Prasad

[Manu Sharma]

Dear Yusuf,

If you haven't received a reply to this offline, I suggest you directly contact Green-India member and water expert S. Vishwanath otherwise known as zenrainman for advice. He can be reached at zenra...@gmail.com.

Thanks,

Manu

On 28 November 2012 21:20, Yusuf Turab <yu...@ytenterprises.com> wrote:

Dear Members

                 Any waste water treatment and reuse requires good quality tertiary treatment if it needs to be reused for flushing purposes. As written below we were proposing to use a subsurface flow wetland to treat the grey water (kitchen water not included). Unfortunately we are unable to figure out a low cost method to polish the water so that it is completely safe for flushing.

We do not have space for any polishing ponds or water fountains to expose the water to sunlight. We found that membrane treatment is expensive, requires electricity (which Tamil Nadu does not have) and requires changing the membrane every few years. Is there any other low cost way to provide that last bit of treatment that keeps all stakeholders happy?

The proposed wetland is fairly large and provides at least 20 hours retention, before the wetland we are also pre-treating the grey water using EM solution in the baffled storage sump and we have a filter that removes any solids before it goes in the storage sump.

Any ideas?

Many Thanks
Yusuf Turab
http://www.ytenterprises.com/

[Manu Sharma]

Thanks Yusuf for the update. The ocean wave technology design developed by Mr. Sampath Kumar has been discussed on Green-India in the past. About Solar companies taking up much of conference space - this has been the case with RE events over the past two years. Really unfortunate that interest in Solar has driven out that in wind power considering the low cost of generation from wind and much lower embodied energy. 

Manu

On 28 January 2013 13:03, Yusuf Turab <yu...@ytenterprises.com> wrote:

It was a pleasure to meet Mr Smapath Kumar (the inventor of Nualgi and fellow group member) at the renewable energy conference in Coimbatore. He gave an interesting presentation on the workings of Nualgi and more importantly some of the new techniques he is working on to exploit energy from ocean waves. It was truly inspiring.

The exhibition was average size and nothing new was there to see. Over 90% of the stalls were taken up by solar energy companies, a couple of waste to energy companies and bio mass/gas companies. Wind energy companies were non existent, showing how policy driven this sector is and maybe sign of things to come? 

Yusuf Turab
Y T Enterprises

On Friday, 9 November 2012 00:45:42 UTC+5:30, Yusuf Turab wrote:

Dear Fellow Members

                      We are working on a green building project where apart from the usual green building certification activities, we are also involved in the water management. As per our strategy so far we plan to separate the black and grey water. The grey water (about 35-40K litres per day) will be filtered and pumped to the reed bed system on the roof of the building. This water will flow back down into the sump and will be used for landscaping and flushing.

We have decided to build large septic tank for the black water (about 15-20K litres per day)  but I was hoping we could find better use of the black water than just letting it go waste. After all the recent discussions on biogas, I was wondering if there is a simple way to build a biogas plant instead of the planned septic tank for the black water and maybe use the gas at the staff quarters.

The project has three blocks and total of 100 apartments. Thanks in advance.

Yusuf Turab
http://www.ytenterprises.com/

--
You received this message because you are subscribed to Green-India
to discuss India's Energy Future and Sustainable Living.
 
Green-India
http://green-india.in
 
Rules & Disclaimer (Important)
http://goo.gl/Te9d2
 
To unsubscribe, send email to
green-india...@googlegroups.com
 

---
You received this message because you are subscribed to the Google Groups "Green-India: India's Energy Future and Sustainable Living" group.
To unsubscribe from this group and stop receiving emails from it, send an email to green-india...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
 
 

[Girish Shivakumar]

Number of solar companies is definitely on the rise, but most of them are small local players, esp in the conference in coimbatore. Another reason for low turnout by wind energy developers can be due to the wind conference that was held in Delhi last week and all the major players were represented there.

Girish

To unsubscribe from this group, send email to green-india...@googlegroups.com.

[Prince Mugisha]

Dear friebds i am from Burundi and i am interested in green energy develop biogas digester benefiting from black water and organic/garden wastes, anyone with a blue print?

[mp ramakumar]

Dear Yusuf

I am ramkumar, SVP R&D with a wind energy company called ReGen. Built one 100 % eco friendly house at Sullurpet close to Chennai and Sriharikota. In this house aprt from thermal, energy and water management, I have done waste mngmnt also. Instead of building a septic tank, I have built a 4 CUM bio digester with a floating drum. We keep LPG only as a standby. With just night soil and 3 Kgs of organic waste I am getting bio gas in excess of 4 hours. This 3 Kgs of bio waste includes house bio waste plus nearby Dhabha waste. The complete design was given by Prof Ajay Chandak from Dhule Maharashtra. The slurry of bio digester which is wateryand highly nutritious  is used to grow plants with a system called planted filter. In case u need more info contact me 9940652943. Another way of treating black water is by using Actyzyme natural bacteria, which converts night soil into methane, micronutrients, nitrogen and water. No Smell, no pathogens, no need to clean septic tank in life time.

On Friday, November 9, 2012 12:45:42 AM UTC+5:30, Yusuf Turab wrote:

[Vishwas Gokhale]

It is high time those who are working on biogas should give some realistic figures.

If you want to run a biogas plant for one family you should have a plant of 2 cum/day capacity  which is equivalent to  25 kg of food waste. cosidering the waste  is about 10 % of food consumed  by the family ,the food consumed by the family should be 250 kg/day 

Is it possible.?

The contributors should  talk about viable projects.

Vishwas Gokhale

--

Green-India
http://green-india.in
 
Rules & Disclaimer (Important)
http://goo.gl/Te9d2

---
You received this message because you are subscribed to the Google Groups "Green-India: India's Energy Future and Sustainable Living" group.
To unsubscribe from this group and stop receiving emails from it, send an email to green-india...@googlegroups.com.

--
Vishwas Gokhale

Principal consultant

GIT Associates

1034/2/B, 6 Annapurna Apts,

Model Colony,

Pune 411016

Ph:- 091 20 25651405

Mo. 0919822604274

[Manaf Abdul]

Dear Ramkumar,

Interesting. Please send details to ma...@altaenergy.in. 

We’re working on Micro Combined Heat & Power (CHP):  highly efficient technology to convert animal dung and other agricultural waste products into electricity. The CHP runs off of anaerobic digester gas or Biogas, etc as the primary fuel, with either propane or natural gas as a back-up fuel source in case of insufficient digester gas supply. Recoverable Heat:  >5kW_th, Useful for 1.5 Ton equivalent cooling capacity, High Fuel-to-Electrical Energy Efficiency, Operating Temperature:  -40⁰C to +45⁰C, the engine requires zero maintenance, Preventative maintenance on the balance-of-plant is recommended once per year are some of the key features.

Regards

Manaf

[Bhaskar M V]

Dear Mr Vishwas

Mr Ramakumar has clearly mentioned that size of his BioDigester is 4 cum and that he is sourcing waste from a Dhaba, in addition to the sewage and kitchen waste from his house.

So your point about 2 cum digster and waste from 1 house not being adequate to produce gas required for that house is superfluous.

Regards

Bhaskar

You received this message because you are subscribed to a topic in the Google Groups "Green-India: India's Energy Future and Sustainable Living" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/green-india/0e-ENXdfTPQ/unsubscribe.
To unsubscribe from this group and all its topics, send an email to green-india...@googlegroups.com.

[Yusuf Turab]

Thank you Mr. Ramkumar. I have been researching this topic for our green building projects for a few years now but unfortunately, I have not yet seen a convincing system that works for large apartment projects with space constraints. Every bio gas consultant I talk to, talks about the issues dealing with Hydrogen Sulphide over a long term and also very high capital costs involved. I have also not received any convincing ideas to manage the slurry in dense urban environments.

Hence, we have now started prescribing regular SBR STPs and separate organic waste composting machines for residential buildings. The capital costs in this case, while not ideal are at least affordable and there is excellent clarity from vendors on the operations of these systems and clarity on what to expect.

With bio-gas it seems like we are shooting in the dark. Biodigester system vendors unfortunately do not seem to be organised enough to provide sufficient warranties, maintenance contracts, practical solution for managing the slurry etc in highly urban dense environments.

With regards to Actizyme, I am very curious to learn more. I have been using EM solution in our DEWATS system which has been giving us mixed results. Would olike to try something that acts more quickly on the excess buildup of organic content.

Many Thanks
Yusuf

On Tuesday, 14 October 2014 17:14:36 UTC+5:30, mp ramakumar wrote:

[shahed khan]

Mr Ramkumar>Did your company start the windmills in Bangladesh?