A chemical waste liquid treatment device

Abstract

The invention discloses a chemical waste liquid treatment device. The chemical waste liquid of the invention is injected into the pH adjustment chamber through the water inlet for pH adjustment, and then the conduction control valve is opened to enter the pH adjustment chamber after the pH adjustment is completed. The flocculation chamber is used for flocculation treatment; and the pH treatment of the pH adjustment chamber and the flocculation treatment of the flocculation chamber are carried out at the same time, which can effectively improve the treatment efficiency of waste liquid; the pH adjustment assembly of the present invention adopts the mode of rotating and discharging, which can improve the pH The uniformity and rapidity of adjustment enhance the accuracy of pH adjustment, and the flocculant addition component is blown apart by air blowing components, which can effectively improve the uniformity of flocculant blowing and improve the flocculation effect. The design of the desilting component , can quickly remove sedimentation impurities, which is convenient for users and improves work efficiency.

Description

Technical field [0001] The present invention relates to the field of chemical waste treatment technologies, in particular a chemical waste liquid treatment apparatus. Background technique [0002] It refers to a chemical plant chemical wastewater waste products produced in the process, such as the production of oil-containing wastewater means ethylene, polyethylene, rubber, polyester, methanol, ethylene glycol, oil tank, pneumatic air separation station, after after the biological treatment, generally up to the national emission standards, is due to the shortage of water resources, the need to meet the emission standards of the depth of water and then after further treatment, to achieve recycling of industrial replenishment requirements, mainly due to the impurities in the water and suspended particles fine wool fiber, the use of mechanical filtration principle, the use of microfiltration to remove impurities, the time relay is controlled by a PLC or condition of the filter devic...

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Problems solved by technology

[0003] A Chinese patent discloses a chemical waste liquid treatment device (authorized announcement number CN207828006U). This patented technology is provided with two dosing pools. When the composition of the chemical waste liquid is complex, different reagents are added to different dosing pools to improve The purification rate of wastewater, the dosing pool is provided with a dosing port, which is convenient for reagents to be put into the dosing pool, and the diversion pipe is provided with a valve, which is convenient for controlling the time when the chemical waste liquid enters the next processing link. There is a detachable cover on the sedimentation tank, and the cover is fixed on the tank body of the sedimentation tank by screws, which facilitates the opening of the cover and facilitates the cleaning of sludge in the sedimentation tank. The chemical waste liquid treatment device has simple structure, convenient operation and The advantages of high treatment efficiency have broad market prospects, but the current chemical waste liquid still has many shortcomings in the process of treatment. There are many impurities in the waste liquid, and the accumulated impurities will be difficult to remove. The staff has brought a large workload. Because it is chemical waste liquid, the acidity in the waste liquid is relatively strong, and direct discharge will cause great harm to the environment. The device continues to process the waste liquid, and the inner wall of the box and the partition seat will be adsorbed Many impurities are difficult to remove, which brings inconvenience to the cleaning of the staff

[0004] Moreover, for the treatment of chemical liquids, multi-stage treatment is generally adopted. In the primary treatment, it is generally necessary to adjust its pH and realize flocculation and sedimentation treatment. The current pH adjustment is generally to directly inject a certain acid-base Liquid, this method is easy to lead to adjustment deviation, the efficiency is low, and the flocs are easily split due to stirring during the flocculation treatment, resulting in poor sedimentation effect, and if the agitator is not used, the flocculant will be mixed unevenly , difficult to disperse, affecting flocculation efficiency and quality

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