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In order to develop a suitable biological-treatment unit component for a prefabricated small wastewater-treatment package plant, a packed-entrapped-mixed microbial cell (PEMMC) process was investigated for settled-screened and anaerobically treated pig wastewaters. It was found that high nitrification efficiency (95-97%) could be achieved at an HRT of 10 h for the anaerobically treated pig wastewater...
In order to develop a simple operation for an anaerobic treatment process for highly concentrated pig wastewater for small producers, a three-stage anaerobic treatment process was investigated. The system provided a series of mixing, homogenization, biological reaction and final stabilization of concentrated pig waste (total solid content of 8-10%). The process provided a stable operational performance,...
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