Principles for sludge treatment and disposal

With the continuous improvement of urban sewage treatment rate and the continuous construction of new sewage treatment plants, the sludge produced by sewage treatment plants has increased dramatically. In addition, the sludge treatment technology in China started late, and the speed of sludge treatment can not catch up with the growth speed of sludge, resulting in a large number of sludge accumulation and random disposal, which brings serious harm to the environment. Our government has promulgated a series of regulations and measures in order to solve the environmental problems of sludge at the policy and technical level.

Sludge treatment and disposal should adhere to the principle of "safe amd environmental protection, recycling, energy conservation and consumption reduction, taking measures according to local conditions, and being reliable", realize sludge reduction, stabilization and harmlessness, and promote sludge resource utilization. At present, sludge treatment methods include concentration, dehydration, anaerobic digestion, aerobic digestion, composting, drying, incineration, etc., among which sludge drying treatment is widely used. The disposal methods of sludge include landfill, incineration, land use, sludge farming, energy utilization and comprehensive utilization. No matter which disposal method, sludge needs to be dehydrated, harmless and reduced first.

Sludge drying can reduce the moisture in sludge, reduce the sludge volume, and prepare for the later sludge disposal. The design concept of the sludge dryer equipment designed and manufactured for ZJN is based on the characteristics of sludge. The equipment has the advantages of high efficiency, energy saving, consumption reduction, environmental protection, etc., which makes the waste heat and sludge produced in the production process of the resource-based treatment enterprise, solves the dilemma of high cost and low income of drying sludge, and creates new value for the economic development of the enterprise.

Jiaozuo ZJN company has more than 30 years of production experience, focusing on sludge dryer product research and development, production, sales, after-sales and provide comprehensive drying, drying scheme in one of the green environmental protection enterprises.