Sewage treatment equipment and method for preventing adsorbent clogging and hardening

A sewage treatment method and adsorbent technology, which are applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of increasing treatment procedures and costs, wasting resources, and increasing swelling. and other problems, so as to avoid the increase of operating costs and investment costs, increase operating costs and investment costs, and resist water quality fluctuations.
CN111170493BActive Publication Date: 2021-06-18NANJING UNIV +1
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV
Publication Date
2021-06-18

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a sewage treatment device and method for preventing adsorbent clogging and hardening, and belongs to the technical field of waste water treatment. In the sewage treatment method of the present invention, first, a coagulant is added to the primary precipitation unit to carry out rapid precipitation reaction, after the rapid precipitation reaction, the effluent flows into the secondary precipitation unit, and then a coagulant is added to carry out the flocculation reaction, and then after the flocculation reaction is slowly precipitated The supernatant liquid enters the adsorption unit for adsorption and decontamination. Part of the adsorbed effluent is fully mixed with the supernatant effluent after flocculation and sedimentation before returning to the adsorption unit, and then flows into the adsorption unit. row or enter the next processing unit for processing. The invention prevents the saturated or supersaturated influent before the adsorption unit from causing precipitation in the adsorption unit to block the adsorbent or harden the adsorbent; and there is no additional increase in the amount of waste water, the operation is simple, the use efficiency of the adsorbent is effectively improved, and the sewage is reduced Handle operating costs.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment equipment and method for preventing adsorbent clogging and hardening. Background technique

[0002] In recent years, the problem of water pollution in my country has become increasingly serious. With the rapid development of economy and society, water pollution in some river basins is showing a trend of increasing. Various complex pollutants lead to the decline of water environment quality, the damage of water ecosystem, and the increase of environmental hidden dangers. On the one hand, water resources are scarce in the central, western and northern areas, which require advanced treatment of urban sewage and industrial wastewater to increase the recycling rate. On the other hand, the problem of drinking water safety has become increasingly prominent. There are more and more trace organic pollutants with biological toxicity. The implementa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More