Field testing has show that a 12-hour wastewater retention time will yield four to six months of continuous operation before removal of sludge for ultimatedisposal.
现场试验表明在污泥去除最终处理前12个小时的保持时间可以产生4 - 6个月的连续运行。
2
Then, the sludge needs disposed. Several potions are available for the ultimatedisposal of sludge.