Sludge digestion using ORP-regulated aerobic-anoxic cycles
Sludge digestion using ORP-regulated aerobic-anoxic cycles
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DOI：
10.1016/0043-1354(94)90275-5
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发表时间：
1994-02
期刊：
影响因子：
12.8
通讯作者：
D. Wareham;D. Mavinic;K. Hall
中科院分区：
文献类型：
--
作者：
D. Wareham;D. Mavinic;K. Hall
This work documents the results from two lab-scale reactors digesting waste sludge in an aerobic-anoxic fashion. The control reactor “fixed” the length of the aerobic-anoxic cycle at 6 h, with each segment of the cycle set at 3 h each. The experimental reactor used ORP to control the total length of the cycle based upon the distinctive “nitrate breakpoint” occurring in the ORP-time profile. The reactors were evaluated on the basis of removals for TSS, VSS, nitrogen and phosphorus. In addition, the control stability achieved when the reactors were subjected to spikes of specific chemicals was monitored. The ORP-regulated reactor better accommodated the disturbances, as well as appeared to show an increase in the removal of nitrogen and solids.
