Cover Image
close this bookSustainable Energy News - No. 35 - November 2001 - Theme: Poverty & Energy (INFORSE, 2001, 18 p.)
View the document(introduction...)
View the documentEditorial: Energy Vital to Fighting Poverty
close this folderINFORSE/World
close this folderINFORSE on the Way to Rio+10
View the document(introduction...)
View the documentTask Force for WSSD Preparation
View the documentVision 2050 at Rio02 in January
View the documentVODO Conference in November 2001
View the documentSide Event at Rio+10 in September 2002
View the documentINFORSE - Meeting South Asia
View the documentNGOs’ Letter
close this folderTheme: Poverty & Energy
close this folderViews on Poverty
View the document(introduction...)
View the documentGlobal Marshall Plan
View the documentHow to bring energy-sector assistance closer to...
View the documentGetting Renewable Energy to Tackle Poverty
View the documentGlobal Vision 2050, INFORSE
View the documentImproved Cooking Stove - a Case in Nepal
View the documentProgress has been less than hoped
View the documentPoverty Orientation in Energy - NGO View
View the documentWorking Group of the UK Development Assistance Seeking Dialogue
close this folderEuropean News
View the documentNew INFORSE-Europe Action Plan 2002
View the documentSustainable Energy Seminar
View the documentNuclear & Terrorism - Serious Risks
View the documentEU to Ratify Kyoto with New Actions
View the documentProtests against Russian Nuclear-Waste Imports
View the documentBarents Wind
View the documentCatalan Platform Formed
View the documentAsia: Chinese Biogas: Still Expanding
View the documentPublications
View the documentEvents
View the documentBack page: 10.000 Visitors in Ukraine

Asia: Chinese Biogas: Still Expanding

By Wu Libin, China Biogas Society (CBS) China

As a pioneer country in the use of biogas, China is still expanding the practice, using traditional household biogas plants and in a number of other applications.


Family biogas plant, and its uses.

More and Larger Biogas for Agriculture

The biogas uses in farm households are still growing and currently about 8 million households have biogas plants. Biogas use greatly augments the farmer’s income as well as development of the rural economy and improvement of the environment.

Not only do the plants provide farm households with clean gas fuel and excellent organic fertilizer, they increasingly serve a number of other purposes.

The digested slurry is used to feed fishes and pigs, and seeds are soaked in it, while the biogas is used to store grain and fruits.

In addition to the household farms, larger farms are increasingly using biogas. A particular interesting development is the "North Biogas Ecological Agriculture Model" (generally called the Four-in-one model). It is an efficient production model that integrates biogas technology, solar energy, greenhouses, livestock, and cropping as a whole with biogas technology as ligament.

It is effective due to its multilevel energy utilization and benign cycle of substances.

It has been promoted to 230 thousand farm households in the northern area of China and is seen as the "well-off" project, by which local farmers can get rich.

Biogas in Wastewater Treatment

Biogas technology is increasingly used in wastewater treatment in China, ranging from treatment of "easy-to-degrade" wastewater from large farms, to treatment of more difficult or hazardous wastewater from hospitals, paper industries, pharmaceutical industries, dyeing, and other industries. In several cases, research has resulted in development of processes for anaerobic digestion of "hard-to-degrade" industrial wastewater. In some cases, this can be done by combining anaerobic digestion with other processes.

The anaerobic digestion can also be helped by addition of trace elements or by special digester designs, e.g. with bio-membranes. Further, special anaerobic bacteria are cultivated and used for special purposes.


Now household biogas digesters are often produced in pre-fabricated modules.


Wastewater treatment plant on a pig farm in Shenzhen City

Large support Structure

China has established a complex network responsible for administrative management of biogas construction, research, technology promotion, education, and training. The China Biogas Society and its over 2000 members cooperate closely with this network.


Figure

Wu Libin is Deputy Director & Prof. of Department of International Affairs, China Biogas Society (CBS); Director of Department of International Exchange of Biogas Research Institute of Ministry of Agriculture, (BIOMA) & Asia-Pacific Biogas Research and Training Center (BRTC)


Figure

Contact e-mail: CBS: wulibin_cbs@sina.com BRTC: brtcl@mail.sc.cninfo.net