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About product and suppliers:
        Alibaba.com offers 5,721 biogas digester products. About 73% of these are biogas, 5% are water treatment, and 2% are geomembranes. 

A wide variety of biogas digester options are available to you, such as cooking fuel, heating system, and illuminating. You can also choose from free samples, paid samples. 

There are 5,749 biogas digester suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Switzerland, which supply 99%, 1%, and 1% of biogas digester respectively. 

Biogas digester products are most popular in Africa, South America, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 730 with ISO9001, 438 with ISO14001, and 250 with OHSAS18001 certification.