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Method for mixing flocculant with motor vehicle cleaning sludge

A flocculant and motor vehicle technology, which is applied to the wastewater treatment of vehicle washing facilities, dehydration/drying/concentrated sludge treatment, etc. The effect of high atomization efficiency, promoting the improvement of sludge dewatering rate and reducing treatment cost

Inactive Publication Date: 2019-10-29
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problems of the existing flocculant and car wash sludge flocculation and dehydration technical method that the amount of flocculant is relatively large, the processing cost is high, and the effect and efficiency of flocculation and dehydration are poor. method

Method used

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  • Method for mixing flocculant with motor vehicle cleaning sludge

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specific Embodiment approach 1

[0015] Specific implementation mode one: the method for mixing flocculant and motor vehicle cleaning sludge in this embodiment is carried out according to the following steps:

[0016] 1. Atomization of flocculant:

[0017] The liquid flocculant is atomized into mist flocculant by ultrasonic atomizer;

[0018] For the solid flocculant, first dissolve it with clean water into a liquid aqueous solution, and then use an ultrasonic atomizer to atomize it into a mist flocculant;

[0019] 2. Mixing of mist flocculant and air: place the spray port of the ultrasonic atomizer in a static mixer connected to the atmosphere, and mix the mist flocculant with air under normal pressure to obtain mist flocculant and air mixture;

[0020] 3. Mix the mixture obtained in step 2 with the water-containing car washing sludge by using a gas-liquid mixing pump under pressure.

[0021] Compared with the stirring mixing in the traditional flocculation tank, this method mixes the flocculant and car w...

specific Embodiment approach 2

[0022] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 1, the ultrasonic frequency of the ultrasonic nebulizer is 30-50 kHz. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: in step 1, the ultrasonic frequency of the ultrasonic nebulizer is 40 kHz. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a method for mixing a flocculating agent with sludge for cleaning a motor vehicle and especially relates to a method for mixing a flocculating agent with sludge. The method is used for solving the problems of large flocculating agent dosage, high treating cost and poor flocculating dewatering effect and efficiency of the existing flocculation dewatering technical method for mixing a flocculating agent with sludge for cleaning a motor vehicle. The method comprises the following steps: 1) atomizing the flocculating agent; 2) mixing the atomized flocculating agent with air: arranging an atomizing port of an ultrasonic atomizer into a static mixer communicated with the atmosphere, and mixing the atomized flocculating agent with air under normal pressure in proportion, thereby obtaining a mixture of the atomized flocculating agent and air; and 3) adopting an air-liquid mixing pump for pressurizing and mixing the mixture obtained in the step 2) and the water-containing vehicle-cleaning sludge. According to the method, the flocculating agent and sludge for cleaning the vehicle are more uniformly and fully mixed, so that the dosage of the flocculating agent is reduced, the flocculation space is saved, the flocculation time is shortened, the sludge flocculation water effect and efficiency are increased, the treating cost is lowered, and the sludge dewatering efficiency is increased. The method provided by the invention is applied to the field of sludge treatment.

Description

technical field [0001] The invention relates to a method for mixing flocculant and sludge. Background technique [0002] Motor vehicle cleaning sludge (i.e., car washing sludge) is a mildly polluted sludge, which can be used for resource utilization after proper treatment. Car wash sludge has the characteristics of high water content and difficult dehydration. Flocculants have a conditioning effect on sludge and are widely used in sludge flocculation and dehydration. How to efficiently mix the flocculant with car wash sludge, improve the sludge flocculation effect, reduce the amount of flocculant, and improve the sludge dewatering efficiency has become a key issue to realize the reduction, stabilization, harmlessness and resource utilization of car wash sludge . my country's sludge treatment and disposal resource utilization technology started late. Although great progress has been made, the effective technology for car wash sludge treatment is still in the research stage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/14C02F103/44
CPCC02F11/14C02F2103/44
Inventor 陈刚刘新力王冠然宋义林
Owner HEILONGJIANG UNIV
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