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About product and suppliers:
        Alibaba.com offers 566 methane digester products. About 60% of these are biogas, 4% are water treatment. 

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

There are 566 methane digester suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Switzerland, and India, which supply 98%, 1%, and 1% of methane digester respectively. 

Methane digester products are most popular in Africa, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 123 with ISO9001, 44 with ISO14001, and 13 with Other certification.
        
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