Physical and chemical treatment system of dangerous waste liquid

Abstract

The invention discloses a physical and chemical treatment system of dangerous waste liquid. The system comprises a primary reaction still, a secondary reaction still, a measuring tank, a preparation still, a dosing tank, a press filer, a filtrate tank, a buffer tank and a vacuum pump, the primary reaction still and the secondary reaction still are both connected with the dosing tank, the preparation tank and the measuring tank are sequentially connected with the primary reaction still, the buffer pump and the buffer tank are sequentially connected with the primary reaction still, the outlets of the primary reaction still and the secondary reaction still are connected with the press filter through a primary pump, the press filter is connected with the filtrate tank, and the filtrate tank is connected with the secondary reaction still through a secondary pump on one hand and connected with the subsequent treating device on the other hand. The treatment demand of the dangerous waste liquid can be well reached, less equipment is used, the whole treatment process cannot influence the environment, the enclosed operation can avoid the secondary pollution to the environment and the damage to the personnel, the operation process is simple and convenient, the operation cost is reduced, and the system is suitable for the physical and chemical pre-treatment and recycling of various liquid dangerous wastes.

Description

technical field [0001] The invention relates to a system for physical and chemical treatment of liquid hazardous waste, which belongs to the technical field of hazardous waste liquid treatment. Background technique [0002] Physical and chemical treatment processes commonly used for waste liquid include coagulation, chemical precipitation, acid-base neutralization, redox, adsorption and desorption, ion exchange, incineration, etc. Most of the existing hazardous waste liquid physicalization systems can only deal with one type of waste, and the application range is narrow; a few systems that can deal with more types often have a lot of equipment and complex operations, and the operating costs are high; even some treatment processes are often open , causing secondary pollution to the surrounding environment. [0003] Chinese patent document CN102344214A discloses a "Comprehensive Physical and Chemical Treatment System for Hazardous Waste Liquid", which includes waste liquid st...

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Problems solved by technology

[0004] However, the above-mentioned technologies are either complex in structure, cumbersome and inconvenient to operate, or have narrow application areas and unsatisfactory treatment effects.

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