About product and suppliers:
            433 sludge powder products are offered for sale by suppliers on Alibaba.com, of which feed grade amino acids accounts for 1%, feed grade proteins accounts for 1%. 

A wide variety of sludge powder options are available to you, 

There are 433 suppliers who sells sludge powder on Alibaba.com, mainly located in Asia. The top countries of suppliers are India, China, from which the percentage of sludge powder supply is 9%, 89% respectively.