首页>
外国专利>
METHOD FOR TREATING WASTE WATER AND METHOD FOR INTENSIFYING WASTE WATER TREATMENT OPERATIONS.
METHOD FOR TREATING WASTE WATER AND METHOD FOR INTENSIFYING WASTE WATER TREATMENT OPERATIONS.
展开▼
机译:处理废水的方法和强化废水处理操作的方法。
展开▼
页面导航
摘要
著录项
相似文献
摘要
An activated sludge wastewater treatment method is provided. The disclosed method includes: receiving a stream of wastewater into a mixed liquor in an uncovered activated sludge basin; introducing high purity oxygen to the mixed liquor in the activated sludge basin to produce euoxic conditions (i.e. a dissolved oxygen level in the range of between about 5 mg to 15 mg) in the activated sludge basin; passing a portion of the mixed liquor in the activated sludge basin through a clarifier to separate activated sludge and produce an effluent stream and an activated sludge stream; and recycling a portion of the activated sludge stream to the activated sludge basin to produce a mixed liquor having a solids loading of between about 3000 mg and about 10000 mg of suspended solids per liter of mixed liquor and a solids retention time of between about 7 days and 40 days.
展开▼