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Low-carbon source high-ammonia nitrogen high-organic phosphor waste water combined type biological bed treatment technology

A treatment process, high ammonia nitrogen technology, applied in the direction of biological water/sewage treatment, water/sewage treatment, neutralized water/sewage treatment, etc., can solve the problem that the treatment method is difficult to fully adapt, cannot meet the discharge standard, and the removal efficiency of ammonia nitrogen is low, etc. problems, achieve the effects of reducing operating costs and operating workload, improving biochemical treatment efficiency, and improving the Fenton effect

Active Publication Date: 2019-02-19
XINJIANG LVFENG ENVIRONMENT PROTECTION ENG CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

The problem with this method is that in the process of adding alkali to adjust the pH for precipitation, a large amount of ammonia gas will be generated at the same time, which will cause serious secondary pollution problems, and the stripping tower is often fouled, and ammonia nitrogen is removed at low temperatures. Low efficiency makes the use of traditional ammonia stripping technology have certain limitations
The direct biochemical treatment of wastewater with low carbon sources, high ammonia nitrogen and high organic phosphorus cannot meet the emission standards
[0007] The above treatment methods are difficult to fully adapt to, and it is more appropriate to use a combination of physical and chemical methods, chemical methods and biological methods to meet the discharge requirements

Method used

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  • Low-carbon source high-ammonia nitrogen high-organic phosphor waste water combined type biological bed treatment technology

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Effect test

Embodiment 1

[0045] The combined biological bed treatment process of low-carbon source, high ammonia nitrogen and high organic phosphorus wastewater includes five steps: raw water adjustment, iron carbon-Nefton treatment, struvite treatment, A2O treatment, and Fenton advanced treatment, as follows:

[0046] S1. Raw water adjustment

[0047] Raise the waste water to the adjustment tank and adjust the pH=5.

[0048] S2. Iron carbon-Nefton treatment

[0049] (1) utilize the sulfuric acid solution of mass concentration 10% to adjust pH=3, add the hydrogen peroxide aqueous solution of mass concentration 30% simultaneously, by volume, the hydrogen peroxide aqueous solution add-on is 3‰ of total water;

[0050] (2) adding iron-carbon filler, the filling ratio is 40% (weight), the aeration rate is 60L / min, and the reaction time is 5 hours;

[0051] (3) Use 20% sodium hydroxide solution to adjust the pH to 7.5, add the first flocculant, and settle in the sedimentation tank for 2 hours; add 1 g of...

Embodiment 2

[0067] The combined biological bed treatment process of low-carbon source, high ammonia nitrogen and high organic phosphorus wastewater includes five steps: raw water adjustment, iron carbon-Nefton treatment, struvite treatment, A2O treatment, and Fenton advanced treatment, as follows:

[0068] S1. Raw water adjustment

[0069] Raise the waste water to the adjustment tank, and adjust the pH=6.

[0070] S2. Iron carbon-Nefton treatment

[0071] (1) utilize the sulfuric acid solution of mass concentration 25% to adjust pH=4, add the hydrogen peroxide aqueous solution of mass concentration 30% simultaneously, by volume, the hydrogen peroxide aqueous solution add-on is 3‰ of total water yield;

[0072] (2) adding iron-carbon filler, the filling ratio is 40% (weight), the aeration rate is 60L / min, and the reaction time is 5 hours;

[0073] (3) Adjust the pH to 8 with a sodium hydroxide solution with a mass concentration of 30%, add the first flocculant, and settle in the sediment...

Embodiment 3

[0089] The combined biological bed treatment process of low-carbon source, high ammonia nitrogen and high organic phosphorus wastewater includes five steps: raw water adjustment, iron carbon-Nefton treatment, struvite treatment, A2O treatment, and Fenton advanced treatment, as follows:

[0090] S1. Raw water adjustment

[0091] Raise the waste water to the adjustment tank and adjust the pH=5.

[0092] S2. Iron carbon-Nefton treatment

[0093] (1) utilize the sulfuric acid solution of mass concentration 20% to adjust pH=3, add the hydrogen peroxide aqueous solution of mass concentration 30% simultaneously, by volume, the hydrogen peroxide aqueous solution add-on is 3‰ of total water;

[0094] (2) adding iron-carbon filler, the filling ratio is 40% (weight), the aeration rate is 60L / min, and the reaction time is 5 hours;

[0095] (3) Adjust the pH to 8 with a sodium hydroxide solution with a mass concentration of 25%, add the first flocculant, and settle in the sedimentation t...

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Abstract

The invention provides a low-carbon source high-ammonia nitrogen high-organic phosphor waste water combined type biological bed treatment technology. Five steps of raw water regulation, iron-carbon-internal Fenton treatment, struvite treatment, A2O treatment and Fenton deep processing are included, a first flocculating agent and a second flocculating agent are added to the iron-carbon-internal Fenton treatment and the Fenton deep treatment steps respectively. The low-carbon source high-ammonia nitrogen high-organic phosphor waste water combined type biological bed treatment technology is takenas the primary treatment manner of low-carbon source high-ammonia nitrogen high-phosphor waste water, the biochemical treatment efficiency is greatly improved, the problem of standard meeting emission of the low-carbon source high-ammonia nitrogen high-phosphor waste water is solved, and the technology has better social benefits and economical benefits; the Fenton effect is improved by the combination of internal Fenton, iron-carbon, micro electrolysis and Fenton, and the operation cost and operation working intensity are reduced.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a combined biological bed treatment process for wastewater with low carbon sources, high ammonia nitrogen and high organic phosphorus. Background technique [0002] Common industrial wastewater, such as wastewater discharged from printing and dyeing industry, steel industry, oil refining industry, pharmaceutical industry, chemical fertilizer industry, etc., has complex water quality components, high ammonia nitrogen and total phosphorus content, and poor biodegradability, low carbon source and high ammonia nitrogen (greater than 500mg / L) The treatment of high organic phosphorus wastewater (30mg / L-150mg / L) is more difficult, and its pollution to the environment is greater and its impact is greater. The treatment process of urban planning cannot fully meet the standard operation, and the operation cost is relatively high. At present, the commonly used methods for remo...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30C02F101/16
CPCC02F1/461C02F1/52C02F1/5236C02F1/56C02F1/66C02F1/725C02F3/00C02F9/00C02F2001/007C02F2101/16C02F2101/30
Inventor 薛水波田政操杨娜高洪标王炜明温彦鹏
Owner XINJIANG LVFENG ENVIRONMENT PROTECTION ENG CO LTD
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