High-ammonia nitrogen organic sewage purification treatment system and method

Abstract

The invention discloses a sewage purification treatment system and method, and provides a sewage purification treatment system and method capable of obviously improving the capacity of removing organic ammonia nitrogen from sewage targeted at the defects of poor nitrogen removal effect, high running cost, insufficient land bearing capacity and the like of a high-ammonia nitrogen organic sewage purification system and method in the prior art. The purification treatment system disclosed by the invention comprises a processing raw water storage tank, a mineral filter tank connected, a water distributing pipe, and a water collecting pipe, wherein the mineral filter tank is filled with a plurality of layers of mineral filter media, the mineral filter media are divided into three layers, which are respectively a coarse sand layer, a zeolite layer and a gravel layer from top to bottom, the thickness of the zeolite layer is equal to that of the gravel layer, the thickness of the coarse sand layer is twice that of the zeolite layer or that of the gravel layer, and a water outlet terminal of the water distributing pipe is an atomizing spraying device. The invention also provides an assorted sewage treatment method. High-ammonia nitrogen organic sewage is purified and treated by using the system and method disclosed by the invention, the quality of treated water meets national discharge standards, and the system is simple in structure, economical in material application, easily controlled in process of the assorted method, and low in energy consumption.

Description

technical field [0001] The invention relates to a sewage purification treatment system and method, in particular to a high ammonia nitrogen organic sewage purification treatment system and method using multi-layer mineral materials as filter media, belonging to the technical field of water, waste water or sewage treatment. Background technique [0002] High ammonia nitrogen (NH 4 -N) Organic sewage is one of the main types of pollutants in my country at present. The sources include monosodium glutamate sewage, food processing sewage, poultry breeding sewage, landfill leachate, etc. The ammonia nitrogen content in this type of sewage is usually greater than or equal to 300ml / L. The purification treatment method of high ammonia nitrogen organic sewage generally first adopts biogas fermentation process to carry out anaerobic digestion to remove most of the organic pollutants, and at the same time recover energy biogas. Under the condition that the anaerobic digestion liquid (t...

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Problems solved by technology

However, there are problems such as poor denitrification effect, high operating cost, and insufficient land carrying capacity in the post-treatment process of the anaerobic digestion solution (raw water treatment) of high ammonia nitrogen organic sewage. Secondary pollution

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