The complete set of sludge dewatering equipment is a kind of continuous operation sludge treatment equipment, which is loved by the public because of its low water content, stable operation, low energy consumption, relatively simple control and management, convenient maintenance and other characteristics.

Problems needing attention in the disposal and treatment of sludge

For example, the design of sludge drying and incineration device is much more complex than sewage treatment process. We should seriously study, introduce, digest and absorb foreign technology and experience. At the same time, we should formulate and improve regulations and standards related to sludge disposal.

The sludge digestion and biogas utilization devices of some sewage treatment plants are basically imported foreign technology and equipment.

There are many ways to solve the sludge problem. Large factories are different from small ones, and the south is different from the north. Some local sludge can be combined with garbage disposal, and some local sludge can be combined with coal-fired power plants. It is necessary to sum up the experience of agriculture for the sludge from small sewage plants with large amount and wide range.

In terms of sludge drying and heating technology, solar energy, microwave and wet air oxidation can also be considered. Some sludge can be treated together with sludge in industrial wastewater treatment. We should be good at summing up the experience and lessons of various places and vigorously develop domestic equipment, which is a sunrise industry. It is necessary to actively explore low-cost, harmless and multi-purpose sludge treatment and disposal ways suitable for China's national conditions.

When designing urban sewage treatment facilities, industrial pollution source control, sewage treatment process and sludge treatment and disposal should be considered as a system.

It is correct to analyze the composition and quantity of sludge from the sewage plants in the whole city, make a comprehensive plan for sludge disposal, coordinate the relationship among various parties, and implement the phased implementation plan. Sewage treatment is incomplete if the sludge of sewage treatment plant is not treated seriously.