Rapid coagulation-flocculation and sedimentation type waste water treatment method

A flocculation and sedimentation technology, which is applied in the field of high-speed coagulation-flocculation and sedimentation, can solve secondary pollution and other problems

Inactive Publication Date: 2001-03-14
新环境技术株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, along with the following problems, the disposal of the unavoidable sediment produced by th

Method used

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  • Rapid coagulation-flocculation and sedimentation type waste water treatment method
  • Rapid coagulation-flocculation and sedimentation type waste water treatment method
  • Rapid coagulation-flocculation and sedimentation type waste water treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1)

[0031] In particular, it can be seen from the above table that no matter how much Aqua#219, alum and ferric chloride are added, the removal efficiency of total phosphorus is over 90%, and the removal efficiency of BOD and COD is also satisfactory.

Embodiment 2

[0033] (1)

[0034] As can be seen from Table 2, the total phosphorus removal rate increased to over 95% with further addition of glass particles and diatomaceous earth components.

Embodiment 3

[0036] products

[0037] Table 3 shows that total phosphorus removal efficiencies as high as 83% or more can be achieved using only glass and diatomaceous earth, without any Aqua #210. A comparison of (1) and (2) in the case of using only glass shows that COD, TP and TN are removed more efficiently with higher amounts of (2) than with lower amounts of (1) high. On the other hand, in the case of using glass particles together with diatomaceous earth, a comparison of (3) and (4) shows that increasing the amount of glass has no appreciable effect on the removal efficiency of TP and TN, but only It has a slight influence on the removal efficiency of BOD and COD. By using only glass particles without diatomaceous earth (1) with invariant glass particles and diatomaceous earth (3) and with only glass particles without diatomaceous earth (2) with invariant glass particles Compared with (4) of diatomite, it can be seen that (1) and (2) without diatomite are better in ter...

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PUM

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Abstract

The present invention relates to a high speed coagulant-flocculant and sedimentation method for treating waste water, which permits a speedy treatment of waste water including stormwater runoff and also permits a valuable reuse of the sludge produced in the course of treatment. According to the present invention which achieves the object as described above, there is provided a method for treating waste water based on a high speed coagulation-flocculation and sedimentation which method is conducted in an arrangement for treating waste water based on a high speed aggregation and sedimentation, comprising a mixing tank, agitating tank, polymer aggregation tank and sedimentation tank in successive connection in that order, said arrangement being provided with transporting lines for transporting to the mixing or agitating tank the sludge produced in the sedimentation tank, and which method comprises introducing into the mixing tank the aggregating agent based on clay minerals, including zeolite or bentonite as the main component, introducing into the agitating tank an inorganic coagulant, and introducing into the polymer aggregation tank a polymeric flocculant on one hand, and introducing a combination of glass particle and kieselguhr into at least one of the mixing, agitating and polymer aggregating tank to convert the sludge resulted from treating the waste water into reusable porous ceramics on the other hand.

Description

field of invention [0001] The present invention relates to a kind of high-speed coagulation-flocculation and sedimentation method for treating wastewater, especially a novel high-speed coagulation-flocculation and sedimentation method for wastewater treatment, which can rapidly process wastewater including storm runoff, and can also make The sediment produced during the treatment is valuablely reused. Background of the invention [0002] Generally, wastewater treatment stations, including sewage treatment stations, feces treatment stations, etc., purify the wastewater and then discharge it through a series of treatment steps, in which the wastewater is first made free of solids, floating objects, fats, etc. For secondary or tertiary treatment. [0003] Water purified by these treatments should meet the required quality standards, wherein the amount of nitrogen and phosphorus, which are important factors for eutrophication of water, is not less importan...

Claims

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Application Information

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IPC IPC(8): B01D21/01B01D39/20B01J20/02B01J20/10B01J20/14C02F1/52C02F11/00
CPCC02F1/52Y10S210/906
Inventor 崔春植尹泰一
Owner 新环境技术株式会社
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