Industrial wastewater multi-stage purification treatment device

Abstract

The invention discloses an industrial wastewater multi-stage purification treatment device. The industrial wastewater multi-stage purification treatment device comprises a primary filtering device, anaeration tank, a secondary filtering device, a settling pond, a purifying pond, a sterilizing pond, a concentration tank, a dehydrating tank and a heater, wastewater enters the device through a wastewater inlet, and then enters the settling pond through the primary filtering device, the aeration tank and the secondary filtering device successively, the settling pond is provided with two outlets,one of the two outlets is connected with the purifying pond, the other outlet is connected with the dehydrating tank; and two outlets are also formed in the dehydrating pond. The industrial wastewatermulti-stage purification treatment device treats wastewater by two-stage physical filtering, one-stage aeration treatment, one-stage settling and one-stage purification treatment, solid treated materials are dehydrated and recycled by two-stage participate recycling, the recycling utilization rate of the raw materials is increased, liquid waste materials are sterilized to reach a safe emission standard, an electric heating intelligent temperature control technology is adopted in a dehydrating process, the whole device is finished integrally, the wastewater is treated effectively, and the costis reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a multi-stage purification treatment device for industrial sewage. Background technique [0002] It is well known that water resources are the most precious natural resources for human survival and development. However, with the economic development and population increase, the expansion of urban area has brought about the continuous increase of urban water consumption and domestic wastewater, so that the supply and demand of urban water resources Contradictions have become increasingly prominent, and water has become the biggest constraint factor for urban development. Today, when water resources are very precious, sewage treatment and reuse are extremely important. According to my investigation, the use of flocculants and coagulants is an indispensable auxiliary measure in various sewage treatment schemes at home and abroad. The application in processing engineering ...

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Problems solved by technology

However, there are many problems in this method, such as inaccurate dosage of chemicals, lack of timeliness of control, etc., which will affect the treatment results of sewage water quality, and it is unscientific for the expensive polymer flocculant of tens of thousands of yuan per ton. The loss of funds caused by the amount of use is also very considerable

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