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Sewage treatment process

A technology of sewage treatment and process, applied in the direction of water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of complex process and unable to reduce the stirring speed, and achieve the effect of water purification Good, better flocculation effect

Active Publication Date: 2018-06-08
宁波清智环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This existing coagulation process is complex and cannot automatically reduce the stirring speed according to the generation of flocs during the coagulation process

Method used

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Examples

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Embodiment 1

[0028] The embodiment is basically as attached figure 1 Shown:

[0029] The sewage treatment process adopts a coagulation machine for coagulation treatment, and the coagulation machine includes an outer bucket 1, an inner bucket 2 and a medicine bucket 7.

[0030] A water injection pipe 10 , a drain pipe 11 and an interlayer 8 are arranged between the outer tub 1 and the inner tub 2 . The main water pipe is located at the top of the outer barrel 1 and the inner barrel 2; the drain pipe 11 is located at the bottom of the outer barrel 1 and the inner barrel 2, and the drain pipe 11 is provided with a drain valve 110 .

[0031] The inner barrel 2 is provided with an upper stirring rod 3 , a middle stirring part and a lower stirring rod 5 . Both the upper stirring rod 3 and the lower stirring rod 5 are provided with a plurality of arc-shaped blades 31 . In this embodiment, each stirring rod is provided with four arc-shaped blades 31 , which are symmetrical left and right, up an...

Embodiment 2

[0041] The difference between this embodiment and embodiment 1 is: in step A, the coagulant includes 20kg aluminum sulfate and 5kg polyaluminium chloride by mass; in step B, the volume of sewage accounts for 9 / 10 of the volume of the inner barrel; The time is 10 minutes.

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Abstract

The invention belongs to the technical field of sewage treatment, and in particular, relates to a sewage treatment process. A coagulator is used for coagulation treatment. The coagulator comprises anouter barrel, an inner barrel and a reagent barrel; a water injection pipe, a water draining pipe and an interlayer are arranged between the outer barrel and the inner barrel; the inner barrel is provided with an upper-layer stirring rod, a middle-layer stirring part and a lower-layer stirring rod; the bottom of the inner barrel is provided with a water leakage net for supporting flocs; the interlayer is internally provided with an active rod, a passive rod and a water pumping mechanism; a spiral rod, a first bevel gear and a water wheel are arranged on the active rod; a second bevel gear, anactive gear, a first bevel gear pair and a second bevel gear pair are arranged on the passive rod. The coagulation treatment includes the steps: A, coagulant addition; B, water injection; C, water pumping; D, standing; and E, water draining. The sewage treatment process can automatically reduce the stirring speed according to generation of the flocs in the coagulation process and simplifies the coagulation technological process.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment process. Background technique [0002] Sewage treatment methods include physical treatment, chemical treatment and biological treatment. Among them, the chemical treatment method is a wastewater treatment method that separates and removes dissolved and colloidal pollutants in wastewater or converts them into harmless substances through chemical reactions and mass transfer. In the chemical treatment method, the treatment units based on the chemical reaction produced by adding chemicals are: coagulation, neutralization, redox, etc. [0003] Compared with other physical and chemical methods, the coagulation-sedimentation process has the advantages of good effluent quality, stable and reliable process operation, economical and practical, and easy operation. The principle of coagulation and sedimentation is to add some chemicals (commonly know...

Claims

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Application Information

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IPC IPC(8): C02F1/52B01F13/10
CPCC02F1/5236B01F33/821
Inventor 王健
Owner 宁波清智环保科技有限公司
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