[Digestion] Paul's human waste

[Claudia wendland]

Dear Somphob,

please check my paper on 
http://www.tu-harburg.de/aww/publikationen/index.html

Best regards from Hamburg
Claudia

somphop vanichprapa schrieb:

> Dear Claudia,
>   Do you have any estimation of the gas yield amount ( roughly ) for 
> the human waste ( toilet ) or hotel kitchen.
> ----- Original Message ----- From: "Claudia wendland" 
> <c.wendland at tuhh.de>
> To: <digestion at listserv.repp.org>
> Sent: Tuesday, September 05, 2006 10:04 PM
> Subject: Re: [Digestion] Paul's human waste
>
>
>> Dear Somphop,
>>
>> indeed these are very good frame conditions for AD of toilet waste and
>> kitchen refuse in your country. In my country we have to heat up biogas
>> plants as it is too cold in winter.
>> There are biogas plants running in India, Indonesia and China where the
>> biogas is used for cooking. Electricity can be generated by biogas with
>> an engine in a high tech concept.
>> Attached I send you some photos from India, Dr Jha, Sulabh International
>> Academy of Environmental Sanitation, Mahavir Enclave, New Delhi
>>
>> Another hint is the website of BORDA, please see 
>> http://www.borda-net.org/
>>
>> Best regards from Hamburg
>> Claudia
>>
>> somphop vanichprapa schrieb:
>>
>>> Dear Claudia,
>>>    Please send me more info. on the issue as I live in tropical
>>> climate country ( Thailand ), perhaps, the waste from toilet in the
>>> large volume like prison or hotel including their kitchen will be a
>>> good source for biogas and might have better yield. I might generate
>>> Electricity to grid if it's worthy.
>>> ----- Original Message ----- From: "Claudia wendland"
>>> <c.wendland at tuhh.de>
>>> To: <>
>>> Sent: Tuesday, August 22, 2006 2:42 PM
>>> Subject: Re: [Digestion] Paul's human waste
>>>
>>>
>>>> Dear Paul,
>>>>
>>>> I am doing research on AD of human waste (toilet wastewater so called
>>>> blackwater). Here is a summary of my paper for the IWA conference 
>>>> small
>>>> systems in Mexico March 2006:
>>>>
>>>> Anaerobic digestion of blackwater from vacuum toilets and kitchen 
>>>> refuse
>>>> in a continuous stirred tank reactor (CSTR)
>>>>
>>>> C. Wendland, S. Deegener, J. Behrendt, P. Toshev and R. Otterpohl
>>>> Institute of Wastewater Management, Hamburg University of Technology,
>>>> Germany (TUHH)
>>>>
>>>> Abstract
>>>> The objective of this research was mesophilic anaerobic digestion of
>>>> blackwater from vacuum toilets (BW) and kitchen refuse (KR) in a 
>>>> CSTR in
>>>> an ecological sanitation system. A detailed investigation of the BW
>>>> characteristics was carried out. The research on anaerobic 
>>>> digestion was
>>>> performed with three CSTR of each 10 l volume at HRT of 10, 15 and 20
>>>> days. The digestion of BW at 20 days HRT showed stable performance,
>>>> without inhibition effects due to relatively high ammonium
>>>> concentrations. The removal of total and particulate COD was 61% and
>>>> 53%, respectively, and the methane yield 10 lCH4/cap/day. The addition
>>>> of kitchen refuse (KR) improved the performance of the CSTR in 
>>>> terms of
>>>> COD removal efficiency and methane yield. At 20 days HRT the 
>>>> removal of
>>>> total and particulate COD increased up to 71% and 67%, 
>>>> respectively, and
>>>> the methane yield to 27 lCH4/cap/day. The results at 15 days HRT 
>>>> showed
>>>> similar performance. At HRT of 10 days, the anaerobic treatment was
>>>> limited but reached steady state conditions at higher VFA 
>>>> concentrations
>>>> in the effluent, with a decrease of COD removal of 30-33% and of 
>>>> methane
>>>> yield of 19-21%. Assumed that 65% of the COD load from BW is collected
>>>> in the housing estate, the expected methane yields for 100% BW
>>>> collection are accordingly higher.
>>>>
>>>> Keywords
>>>> anaerobic digestion; kitchen refuse; blackwater; ecological 
>>>> sanitation;
>>>> vacuum toilets; CSTR
>>>>
>>>> If you are interested in more info please let me know
>>>>
>>>> Best regards from Hamburg
>>>> Claudia
>>>>
>>>> -- 
>>>> ***********************************************************
>>>> Claudia Wendland
>>>> Institute of Wastewater Management and Water Protection
>>>> Hamburg University of Technology
>>>> Eißendorfer Straße 42
>>>> 21073 Hamburg
>>>> Tel:+49 40 42878 3441
>>>> Fax:+49 40 42878 2684
>>>> c.wendland at tuhh.de
>>>> www.tu-harburg.de/aww
>>>> ***********************************************************
>>>>
>>>>
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>>>>
>>>
>>
>>
>> -- 
>> ***********************************************************
>> Claudia Wendland
>> Institute of Wastewater Management and Water Protection
>> Hamburg University of Technology
>> Eißendorfer Straße 42
>> 21073 Hamburg
>> Tel:+49 40 42878 3441
>> Fax:+49 40 42878 2684
>> c.wendland at tuhh.de
>> www.tu-harburg.de/aww
>> ***********************************************************
>>
>>
>> _______________________________________________
>> Digestion mailing list
>> Digestion at listserv.repp.org
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>
>


-- 
***********************************************************
Claudia Wendland
Institute of Wastewater Management and Water Protection
Hamburg University of Technology
Eißendorfer Straße 42
21073 Hamburg
Tel:+49 40 42878 3441
Fax:+49 40 42878 2684
c.wendland at tuhh.de
www.tu-harburg.de/aww
***********************************************************