A sedimentation sludge reflux coagulation aid and coagulation nucleation clarification device

A sludge return and clarification device technology, which is applied in the direction of flocculation/sedimentation water/sewage treatment, water/sludge/sewage treatment, water/sewage treatment, etc., can solve the problem of low space utilization, high equipment cost, production and installation Inconvenience and other problems, achieve stable and efficient treatment effect, solve the effect of large floor area and small consumption of chemicals
CN105923722BActive Publication Date: 2019-04-12SHAANXI URSTAR ENVIRONMENTAL SCI & TECH
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI URSTAR ENVIRONMENTAL SCI & TECH
Publication Date
2019-04-12

Smart Images

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

Abstract

A settling sludge return coagulation aiding and coagulation clarification device, including a water inlet and outlet unit, a chemical dosing and mixing unit, and a coagulation and sedimentation unit, wherein the coagulation and sedimentation unit includes a shell connected to the water outlet of the raw water tank, and the shell is composed of the same The outer cylinder of the shaft, the middle cylinder and the inner cylinder are composed of three layers of cylinders. The mixing zone, the coagulation zone, the flocculation zone and the sedimentation zone are formed in the shell. The area is connected to the return sludge pipe, and the sludge outlet pipe and the return sludge pipe are connected to the remaining sludge pipe outside the shell. The flocculated particles settle in the sedimentation area by gravity. The sludge is fully mixed. In the coagulation zone, the coagulation reaction occurs with the return sludge particles as the coagulation core. In the flocculation zone, the nucleation of the return sludge particles is used to promote the floc growth and granulation. It has the characteristics of small amount, low floor space, good effluent quality, high sludge return concentration, small return flow and easy control.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of water treatment, and relates to the removal of suspended matter in water supply, domestic sewage and industrial waste water, in particular to a settling sludge backflow coagulation aiding and condensation nucleation clarification device. Background technique

[0002] The clarification process of raw water is a complex physical and chemical process, usually including coagulation, flocculation and sedimentation processes. The coagulation mechanism mainly includes the ZTA potential theory, and the precipitation process is mainly based on the compression precipitation theory.

[0003] The coagulation process requires the hydrolyzate of the coagulant to diffuse rapidly into the water, and all colloidal particles destabilize and coagulate almost at the same instant, so as to obtain a good flocculation effect. In order to achieve a good flocculation effect, a pipeline mixer is usually used in the treatment to f...

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