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Low-cost method for treating waste water

A low-cost technology for wastewater treatment, applied in separation methods, filtration treatment, gas treatment, etc., can solve the problems of inability to completely remove harmful components, not conducive to ensuring environmental protection effects, and high investment, so as to achieve low operation and maintenance costs and guarantee The effect of long service life and low investment

Inactive Publication Date: 2019-07-09
江苏正士环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a low-cost method for treating wastewater to solve the problem that the current wastewater treatment method proposed by the above-mentioned background technology not only requires a lot of investment and high cost, but also cannot completely remove harmful components, which is not conducive to ensuring the environmental protection effect. question

Method used

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Embodiment Construction

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] The present invention provides a technical solution: a low-cost method for treating wastewater, the wastewater treatment method comprising the following steps:

[0031] Step 1: Pretreatment of wastewater;

[0032] Step 2: Send the treated wastewater into the concentration tower for concentration;

[0033] Step 3: Spray drying the concentrated waste water in a spray drying tower;

[0034] Step 4: Pyrolysis and thermal oxidation of organic and toxic components in waste...

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Abstract

The invention discloses a low-cost method for treating waste water. The method comprises the following steps: step 1, preteating the wastewater; step 2, sending the treated waste water into a concentration tower for concentration; step 3, spray drying the concentrated waste water in a spray drying tower; step 4, carrying out pyrolysis and thermal oxidation on that organic toxic components in the waste water; step 5, separating dry salt from flue gas containing water vapor and salt in a dust remover; step 6, desulfurizing and denitrifying the flue gas containing water vapor; step 7, recoveringthat condensed water in the flue gas and removing residual pollutants in the waste water; step 8: using the treated water as circulating water. The low-cost method for treating waste water is convenient for the recycling of water, ensures the recycling of energy, achieves the purpose of treating waste water at low cost, makes the discharged smoke cleaner, purifies the smoke, reduces the dischargeof PM2.5, and reduces the generation of haze.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a low-cost method for treating wastewater. Background technique [0002] At present, wastewater treatment generally consists of three parts: pretreatment, biochemical treatment and advanced treatment. Existing wastewater treatment methods not only require a lot of investment and high cost, but more importantly, they cannot completely remove harmful components. According to the requirements of new environmental protection regulations, advanced treatment is required Enterprises need to increase investment and operating costs. High-temperature pyrolysis and incineration are one of the most effective methods for advanced treatment of organic and toxic waste. They are widely used in developed countries such as Japan and South Korea, but rely on external fuel pyrolysis and incineration. Incineration is costly, therefore, we propose a low-cost method for treating wastewater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10B01D1/18B01D53/26B01D53/80B01D53/60B01D50/00C02F101/30
CPCC02F9/00B01D1/18B01D53/26B01D53/60B01D53/80B01D50/00C02F1/00C02F1/02C02F1/72C02F2101/30C02F1/001C02F2001/007C02F1/043C02F1/10C02F1/16B01D2258/0283
Inventor 刘晨李剑斌马飞
Owner 江苏正士环保科技有限公司
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