U-shaped flow treatment method for saliferous hardly degraded organic wastewater

Abstract

The invention discloses a U-shaped flow treatment method for saliferous hardly degraded organic wastewater. An accommodation body is adopted; on the upper part of the accommodation body, one end is used for feeding water, and the other end is used for discharging water; a middle baffle plate is vertically arranged in the accommodation body to ensure that the water flow can flow in the accommodation body in the U shape; and a filler which is obtained by uniformly mixing waste scrap iron and activated carbon particles is filled into the accommodation body; aeration is performed upward at the bottom of the accommodation body to ensure that the filler is contacted with the wastewater to shake, and meanwhile, wastewater can be subjected to combined action of reaction processes of primary battery reaction, reduction reaction, electrochemical enrichment, physical adsorption, coagulation and precipitation of iron ions and the like in the filler, and wastewater is treated so as to remove pollutant. The method has an efficient and stable treatment effect, the adopted accommodation body treatment device has a reasonable structural design, is convenient to install, runs efficiently and stably, and can overcome the disadvantages of high treatment cost of high-concentration hardly degraded organic wastewater, unsatisfactory effect and the like.

Description

technical field [0001] The invention relates to the technical field of sewage purification treatment, in particular to a U-shaped flow treatment method for salt-containing refractory organic wastewater. Background technique [0002] With the rapid development of my country's industry, the discharge of various industrial waste water has increased dramatically, and the resulting water pollution has become a major problem of my country's environmental pollution. Among these wastewaters, the environmental problems caused by high-concentration saline and refractory organic wastewater have attracted increasing attention. Such wastewater generally has various types, complex components, poor biodegradability, COD, chromaticity, salt and toxic and harmful substances. advanced features. Limits the direct use of biological methods. However, traditional physical and chemical pretreatment methods usually have disadvantages such as high treatment cost, complicated process, and difficu...

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Problems solved by technology

At present, the main difficulties restricting the application and promotion of membrane technology engineering are high cost, short life of membrane, easy to be fouled and fouled, etc.

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