simultaneously, the excess activated sludge that drained from the sediment pool returned the hydrolysis- acidification pool could be degraded, so the treatment cost of sludge could be lower.
同时,把二沉池排出的污泥回流至水解酸化池进行污泥减容化,还可以降低污泥的处理成本。
the results show that this technique is effective for dehydration of excess activated sludge and sludge stabilization.