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About product and suppliers:
        Alibaba.com offers 597 bio digester products. About 70% of these are biogas, 6% are water treatment, and 3% are waste management. 

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

There are 597 bio digester suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of bio digester respectively. 

Bio digester products are most popular in Africa, Domestic Market, and South Asia. 

You can ensure product safety by selecting from certified suppliers, including 98 with ISO9001, 29 with ISO14001, and 10 with Other certification.