Leadership

Purification of Sewage.

Issue 22 and Volume 1893 14.

Purification of Sewage. The purification of sewage before it is discharged into streams has been practiced so long in England that it is but rarely that a case arises when the engineers find it difficult to obtain a fairly good effluent from the filtration fields or the chemical works where the purification is carried on. One of the English cities where the purification has long been regarded as particularly difficult is Nuneaton, which has a population of about 11,000, on the line of the sewers. Attempts made to treat the sewage failed uniformly until within a year. During the summer time numerous letters were received from the owners of property on the banks of the stream below the place where the sewage was discharged complaining of the condition of the river. It was described as a constant stream of a milky white odor, like thick, horribly smelling whitewash. Two-thirds of…

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