[Case Study on Wastewater BOD and Sludge Reduction] Ricoh Company, Ltd. Ebina Factory

We will introduce a case study of laboratory tests for reducing excess sludge treatment costs!

We would like to introduce a case of a laboratory test conducted at Ricoh's Ebina Factory to reduce excess sludge treatment costs. As a result of three BOD comparison tests, an average reduction of approximately 20% in BOD was confirmed. In this test, the wastewater was diluted by half. However, in practical use, since the entire wastewater is modified, a reduction of about 40% in BOD, which is double the test results, can be expected. 【Method of BOD Laboratory Test】 1. Collect 1 liter each of inflow and outflow water from Ricoh's Ebina Factory. 2. Divide the inflow water into 500ml portions, labeling them A and B. Similarly, divide the outflow water into 500ml portions. Further, modify inflow A with BW (Bio Water). 3. Mix inflow A with outflow A, and inflow B with outflow B (since it's 500ml each, the ratio is 1:1). 4. Measure the BOD of the BW-treated water and untreated water (using the 20°C 7-day incubation method). *For more details, please refer to the PDF document or feel free to contact us. *The section titled 'Reason for Interest' displayed during the PDF download is generated by AI from Ipros Inc.

Water Treatment