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Source: Zimpro Division of the Sterling Drug Incorporated of New York. Notes: °Increased volume due to steam injection. °°X 3.065 = PO4 content.

Source: Zimpro Division of the Sterling Drug Incorporated of New York. Notes: °Increased volume due to steam injection. °°X 3.065 = PO4 content.

sponding to ranges of 5 to 15%, 40 to 50% and 70 to 80% reduction in COD.

The wet oxidation process can accommodate sludge concentrations between COD values of 25 and 150. It reduces the filtration resistance and improves the sludge draining characteristics so that it becomes compatible with vacuum filtration. Sulfur is oxidized to sulfate with no sulfur dioxide leaving with the gas exhaust. The process removes most phosphorus with the filter cake and can accomplish complete precipitation without lime addition. The filtrate liquid contains short-chain, water-soluble organic compounds that are biodegradable. Nitrogen is not oxidized to nitrite or nitrate, and no nitrogen dioxide (NO2) leaves with the exhaust gas because the organic nitrogen is degraded to ammonia.

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