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Advanced treatment method for removing iron-manganese in water

A technology for advanced treatment and removal of water, applied in water/sewage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as iron and manganese leakage, achieve strong adsorption, reduce project cost and Operating costs and the effect of increasing operating costs

Inactive Publication Date: 2008-08-27
TONGJI UNIV
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AI Technical Summary

Problems solved by technology

This technology not only solves the problem of iron and manganese leakage in traditional methods, but also takes advantage of biological activated carbon itself to effectively remove COD and ammonia nitrogen in water. Therefore, the application field of biological manganese removal technology is extended from groundwater sources to advanced treatment of industrial wastewater

Method used

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Embodiment 1

[0029]Baosteel Group Baoshan Iron and Steel Co., Ltd. uses the surrounding river water as industrial drainage containing iron and manganese. It mainly collects waste water, domestic sewage and factory rainwater discharged up to the standard from each workshop. The water volume is abundant and the water quality changes greatly. Among them, the average content of COD is 23.83mg / L (13.04~28.70mg / L), the average content of ammonia nitrogen is 1.21mg / L (0.11~2.86mg / L), and the average content of total phosphorus is 0.20mg / L (0.10~0.50mg / L). / L) The average content of total iron is 0.62mg / L (0.12-1.42mg / L), and the average manganese content is 0.45mg / L (0.09-0.86mg / L). Utilize the process of the present invention to set up a set of biological activated carbon device at this place, and test adopts the plexiglass filter column, diameter 150mm, column height 2400mm. The bottom layer is filled with 100mm of gravel as a supporting layer, and the filling height of the carbon layer is 1200...

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PUM

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Abstract

The invention provides a novel technique for removing ferromanganese in water, which employs optimization activated carbon as filler, the optimization activated carbon is formed into biological activated carbon by biofilm culturing in a certain condition. Waste water with ferromanganese can be oxygenated by modes of drop-aeration and oxygenation aeration, via adsorption action and biological action of the biological activated carbon and the filtration of a filtering layer, the ferromanganese in water can be removed and various substance such as COD, ammonia nitrogen and the like in water can be reduced. The technique is capable of removing various pollutants, effectively shortening the technique flow and greatly reducing the construction cost and operation cost, the technique is not only adapted for raw water containing ferromanganese, but also adapted for advanced treatment of industry waste water containing ferromanganese.

Description

technical field [0001] The invention belongs to the technical field of biological treatment of water, waste water or sewage. Background technique [0002] Iron and manganese widely exist in nature and are important physiological trace elements. However, excessive iron and manganese will have a major impact on human health, causing disease and even death, and will also bring great harm to human life and industrial production. When used as washing water or raw materials for production, it will reduce the quality of product gloss and color, especially in industries such as textiles, printing and dyeing, knitting, and papermaking. In the food industry, iron and manganese have peculiar smell and can form colored compounds with some organic matter. In boiler water, iron and manganese are one of the components that generate scale and tank sludge. In the water pipeline, the iron and manganese sediment accumulated on the road wall will reduce the water delivery capacity, and the p...

Claims

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Application Information

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IPC IPC(8): C02F3/10C02F3/12C02F1/64
CPCY02W10/10
Inventor 唐文伟王祯贞曾新平
Owner TONGJI UNIV
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