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Deep biochemical treatment system for papermaking wastewater

A technology for biochemical treatment and papermaking sewage, which is applied in water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. It can solve problems such as low filtration effect, clogging of filter screen, and inability to settle and clean up.

Inactive Publication Date: 2021-06-08
汪波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the existing filter devices, the filter screen is generally used to filter the sediment in the wastewater. During the filtration process, the sediment is easy to block the filter screen, and at the same time, the sediment on the filter screen cannot be cleaned in time, resulting in a relatively low filtering effect. Technical problem, the present invention proposes a deep biochemical treatment system for papermaking sewage

Method used

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  • Deep biochemical treatment system for papermaking wastewater
  • Deep biochemical treatment system for papermaking wastewater
  • Deep biochemical treatment system for papermaking wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1-5As shown, a papermaking sewage advanced biochemical treatment system includes an aeration device, a grille device, a sand settling device, an adjustment device, a flocculation device, a filter device, a disinfection device and a detection device. The filter device includes a filter box 4, and the filter box The inner walls of both sides of 4 are provided with the filter plate 1 with the same arc structure, the top outer wall of the filter plate 1 is provided with grooves of semi-cylindrical structure equidistantly distributed, and the middle of the inner wall of the groove is provided with a No. 1 diversion hole 19. The inner walls of the grooves located on both sides of No. 1 diversion hole 19 are provided with No. 2 diversion holes 20, and the inner walls of No. 1 diversion hole 19 and No. 2 diversion hole 20 are provided with filter screens 18, filter plates 1 The outer wall of the top near the groove is provided with guide blocks 7 distributed equ...

Embodiment 2

[0042] Such as Image 6 As shown, compared with Example 1, in this example, the flocculant in Example 1 is replaced with an inorganic flocculant and the flocculant is an organic flocculant. When the organic flocculant is used, the light transmittance of the treated wastewater is slightly improved, the pH value is changed from the previous weak alkaline to weak acid, and the content of organic matter increases significantly.

Embodiment 3

[0044] Such as Image 6 As shown, compared with Example 1, in this example, the flocculant in Example 1 is replaced with an inorganic flocculant and the flocculant is a mixed flocculant. When a mixed flocculant is selected, the light transmittance of the treated wastewater is greatly improved, almost approaching a pure state, the pH value is also biased towards neutral, and the organic matter content is between the organic flocculant and the inorganic flocculant.

[0045] When in use, the sewage can pass through the aeration device, the grille device, the sand settling device, the adjustment device, the flocculation device, the filter device, the disinfection device and the detection device in order to complete the systematic treatment. When the sewage passes through the filter device, it will have The precipitated sewage is added to the filter box 4. When the sewage is on the filter plate 1, the sewage can enter the groove along the guide block 7. When the sewage is in the gr...

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Abstract

The invention belongs to the technical field of sewage treatment, particularly relates to a deep biochemical treatment system for papermaking sewage, and aims to solve the problems that precipitates in wastewater are generally filtered by a filter screen in an existing filtering device, the filter screen is easily blocked by the precipitates in the filtering process, the precipitates on the filter screen cannot be cleaned in time, and further the filtering effect is relatively low. The system comprises an aeration device, a grating device, a sand setting device, an adjusting device, a flocculation device, a filtering device, a disinfection device and a detection device, the filtering device comprises a filtering box, and the inner walls of the two sides of the filtering box are provided with filtering plates of the same arc-shaped structure; the outer wall of the top of the filter plate is provided with grooves which are distributed at equal intervals and are of a semi-cylinder structure. According to the invention, the effective filtering area can be increased, extension of a piston rod of an electric telescopic rod is controlled, a bump on a push plate can discharge impurities accumulated in the grooves along the filtering plate, and the sewage filtering efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an advanced biochemical treatment system for papermaking sewage. Background technique [0002] Papermaking is an important invention of the working people in ancient China. It is divided into two forms: mechanism and manual. The mechanism is carried out continuously on the paper machine. The pulp suitable for paper quality is diluted with water to a certain concentration, and it is initially dehydrated in the wire part of the paper machine. Wet paper sheets are formed, then dehydrated by pressing, and then dried into paper. Wastewater will be generated during the papermaking process. In order to avoid the pollution of the surrounding environment caused by the discharge of waste water, it is necessary to use a biochemical treatment system to treat the waste water. [0003] In the prior art, the biochemical treatment system generally includes an aeration device, a grid dev...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/28
CPCC02F9/00C02F1/001C02F2001/007C02F1/5236C02F1/54C02F1/50C02F2209/06C02F2103/28C02F2303/04
Inventor 汪波姚海峰
Owner 汪波
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