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High-suspension oily sewage treatment system and method thereof

A technology of treatment system and treatment method, which is applied in the field of treatment system of high-suspended-suspended-solids-oily sewage, can solve the problems of complicated process, large area occupation, and high operation technical requirements, and achieve the effect of improving the separation effect

Active Publication Date: 2019-02-01
四川意德康环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these conventional coagulation-sedimentation, flocculation reaction-sedimentation and other processes have the problems of complex process, high technical requirements for operation, and large area occupation, which lead to defects such as long water treatment chambers and high mine construction costs, and cannot meet the needs of large-scale, high-suspended solids Treatment of Oily Sewage

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  • High-suspension oily sewage treatment system and method thereof
  • High-suspension oily sewage treatment system and method thereof
  • High-suspension oily sewage treatment system and method thereof

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Embodiment 1

[0033] Such as figure 1 As shown, this embodiment provides a treatment system for oily sewage with high suspended solids, which includes a hydrothermal reactor 1 , a coagulator 2 and a purifier 3 sequentially connected by water pipes. Wherein, the bottom of the purifier 3 is connected to a sludge storage tank 4 , and the top of the purifier is connected to a water production tank 5 .

[0034] Such as figure 2As shown, the hydrothermal reactor 1 includes a shell 11 , and the shell 11 includes a cylindrical portion 111 and a conical portion 112 connected to each other. The conical portion 112 is provided with a solid phase outlet 113 , the cylindrical portion 111 is provided with a liquid phase outlet 114 , and there are multiple liquid phase outlets 114 arranged from top to bottom. One or several liquid phase outlets 114 at the lowermost end are connected to the coagulator 2 . A stirrer 12 is arranged inside the housing 11 , and the stirrer 12 is provided with multiple laye...

Embodiment 2

[0039] The present embodiment provides a method for treating oily sewage with high suspended solids, which comprises the following steps:

[0040] Step 1: Import the oily sewage with high suspended solids into the hydrothermal reactor for hydrothermal reaction. After the reaction is completed, the solid sediment is output from the solid phase outlet, and the liquid phase is pumped into the coagulator for coagulation.

[0041] Step 2: Introduce the coagulated sewage into the purifier, and in the purifier first perform a secondary cyclone centrifugation process of swirling downwards and then swirling upwards; during the downward swirling process, under the action of centrifugal force, The suspended particles and alum flowers formed in the sewage are thrown towards the wall of the device, and slide down to the bottom of the purifier along the inner wall under the downward swirling flow and its own gravity, thereby removing most of the suspended solids; after the sewage swirls down...

Embodiment 3

[0043] The present embodiment provides a method for treating oily sewage with high suspended solids, which comprises the following steps:

[0044] Step 1: Import the high-suspended oily sewage into the hydrothermal reactor for hydrothermal reaction. After the reaction is completed, the solid sediment is output from the solid phase outlet, the oil phase is output from the upper liquid phase outlet, and the water phase is output through the lower liquid phase outlet. Pump into the coagulator for coagulation, before entering the coagulator, there is a first dosing device to add PAC.

[0045] Step 2: Introduce the coagulated sewage into the purifier, and in the purifier first perform a secondary cyclone centrifugation process of swirling downwards and then swirling upwards; during the downward swirling process, under the action of centrifugal force, The suspended particles and alum flowers formed in the sewage are thrown towards the wall of the device, and slide down to the bottom...

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Abstract

The invention discloses a high-suspension oily sewage treatment system and a method thereof, and relates to the technical field of sewage treatment. The high-suspension oily sewage treatment system ofthe invention comprises a hydrothermal reactor, a coagulator and a purifier which are connected in sequence. The hydrothermal reactor comprises a shell, inside which a stirrer is arranged. The shellis respectively provided with a solid phase outlet and a liquid phase outlet. The solid phase outlet is disposed at the bottom of the shell, and the liquid phase outlet is disposed on the side wall ofthe shell. The coagulator is connected to the liquid phase outlet. The purifier successively performs two-stage hydrocyclone centrifugal separation on the high-suspension oily sewage successively through downward hydrocyclone and upward hydrocyclone. By integrating oil-water separation, flocculation and sedimentation, filtration and clarification technologies, multi-stage purification treatment of high-suspension oily sewage is realized and has the characteristics of continuity and high efficiency; solid and liquid are separated according to different centrifugal force, and as long as there is density difference, the separation is thorough; and the purified water can be directly reused or discharged as a deeply-treated water source.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a treatment system and method for oily sewage with high suspended solids. Background technique [0002] In recent years, the rapid development of my country's industrial technology has driven economic growth, and the amount of sewage produced in this process is also increasing year by year. Compared with foreign developed countries, my country's sewage treatment rate is not high, and the process needs to be improved. Management It is still relatively backward, with only one sewage treatment plant per 1.5 million people on average, and there are still many problems such as the effective investment utilization rate of sewage treatment plant construction and the low rate of treated water reaching the standard. [0003] my country is a country rich in mineral resources, and the mining industry occupies a place in the national economy. A large number of pollutants are often g...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/38C02F1/001C02F1/56C02F1/5245C02F2201/002C02F2201/007C02F2301/08
Inventor 许成明
Owner 四川意德康环保科技有限公司
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