Wuxi Xishan District sewage treatment costs

10,000 yuan per ton of sewage, later operation and maintenance costs per facility need 40,000 yuan per year. Wuxi Xishan District, Wuxi City, the cost of sewage treatment 10,000 yuan per ton of sewage, later operation and maintenance costs of 40,000 yuan per facility per year. Sewage is defined as discharged water from life and production that has been polluted in some way. The loss of the original use of water is referred to as sewage.