Sewage treatment system and method utilizing industrial waste heat steam and based on hydrate process
A sewage treatment system and industrial waste heat technology, applied in the direction of heating water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of high cost, time-consuming and laborious, cumbersome treatment procedures, etc. To achieve the effect of reducing energy and economic waste, reducing costs and protecting the environment
Active Publication Date: 2019-12-13
DALIAN UNIV OF TECH
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Problems solved by technology
[0007] For the traditional sewage treatment method, the treatment process is cumbersome, time-consuming and labor-intensive, and the problem of high cost
Method used
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Embodiment 1
[0039] This embodiment provides a sewage treatment system using industrial waste heat steam based on the hydrate method; the steps are as follows:
[0040] Firstly, the sewage is precipitated and filtered to remove insoluble particulate matter in the sewage. Open the inlet valve of the primary evaporation chamber, and then start the water pump 1 to pump the sewage into the evaporation chamber. At the same time, open the steam control valve to pass the low temperature waste heat steam into the heat exchange The heat exchanger is exchanged with the sewage. The steam generated in the evaporation chamber enters the hydrate generation chamber through the pipeline. The residue remaining after evaporation is discharged through the slag discharge port.
[0041] Start the cooling water cycle, and control the temperature of the hydrate generation chamber to be no higher than the phase equilibrium temperature of the SII type hydrate generated by cyclopentane and R141b; taking cyclopentane as...
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The invention relates to the technical fields of waste heat steam utilization and sewage treatment, in particular to a sewage treatment system and method for utilizing industrial waste heat steam andbased on a hydrate process. The system comprises a sewage evaporation system, a hydrate generation system, a hydrate decomposition system and a pipeline system. According to the system, low-temperature waste heat is used for diffusing steam to evaporate sewage; the steam generates a hydrate in a hydrate generation chamber; and the hydrate is decomposed into pure water in a decomposition chamber after being centrifuged. The invention provides the treatment method capable of simultaneously treating heavy metal ion wastewater, organic dye wastewater, and organic and inorganic mixed sewage at onetime. Treated sewage can theoretically reach the standard of pure water. The sewage treatment method provided by the invention can effectively reduce sewage treatment steps, improve treatment efficiency and lower treatment cost. In addition, industrial low-temperature waste heat steam can be effectively utilized; steam diffusion is reduced; the problem of diffusion of factory sewage and energy issolved; and economic and environmental protection benefits of factories are improved.
Description
Technical field [0001] The invention belongs to the field of sewage treatment, and specifically relates to a sewage treatment system based on a hydrate method using industrial waste heat steam. Background technique [0002] Since the first industrial revolution, human science and technology have made tremendous developments, but with it, the destruction of the environment by human beings has increased. The world today is faced with three major issues: population, resources, and environment. Among them, water resources are an important resource that cannot be replaced among various resources. The issue of water resources has become one of the most important issues that attract worldwide attention. Scientific investigations have shown that there are varying degrees of water pollution in my country's seven major river basins, and water pollution control is urgent. [0003] Common water pollution includes water eutrophication, heavy metal ion pollution, printing and dyeing wastewater ...
Claims
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Login to View More IPC IPC(8): C02F9/10C02F1/04
CPCC02F9/00C02F1/04C02F1/001C02F2001/007C02F1/38
Inventor 宋永臣孙灵杰赵佳飞杨磊凌铮刘卫国杨明军张毅王大勇
Owner DALIAN UNIV OF TECH