Treatment of wheat starch waste water by a membrane combined two phase membrane fermentation system

• Published in: Desalination Vol. 98; no. 1-3; pp. 161 - 170
• Main Authors: Yanagi, C, Sato, M, Takahara, Y
• Format: Conference Proceeding
• Language: English
• Published: 01.01.1994
• ISSN: 0011-9164

Waste water from wheat starch production was treated by a membrane combined two phase methane fermentation system with 20kg/m super(3)d of COD loading. The following satisfactory results were obtained: BOD and SS concentration in the system effluent was under 50 mg/l and 90 mg/l respectively. More than 99% of organic matter was removed. About 40,000 kcal of methane gas energy was recovered in an operation of 12-22 kg/m super(3)d, and the average methane gasification rate and sludge yield rate were 0.33Nm super(3) CH sub(4)/kg COD removed, and 0.12kg VSS/kg COD removed respectively.