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Processing method for removing ammonia nitrogen through high-salt low-carbon industrial waste water continuous biological synergism

A technology for biological synergy and industrial wastewater, applied in the fields of water, wastewater, and sewage treatment, can solve the problems of immature process and high treatment cost, achieve the effect of reducing investment cost and improving cultivation effect

Inactive Publication Date: 2012-07-18
宜态科环保技术(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technology of this method is not yet mature, and the processing cost is relatively high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A petrochemical wastewater

[0047] Step 1. Preparation of nutrient solution: Weigh 8kg (NH4)2CO3, 2kg potassium dihydrogen phosphate, 0.5kgMgSO4, 0.2kg Co(NO3)2, 1kg molasses, mix well, add dechlorinated tap water to 100kg, stir to dissolve.

[0048] Step 2. Preparation of culture medium: The culture system uses two Yitaike environmental protection biological online automatic incubators, which operate alternately. Weigh the above-mentioned nutrient solution in 3 kg, 2 kg of Baitean nitrifying bacteria liquid, and 1 kg of 100-mesh diatomite powder, stir, and add dechlorinated tap water to 1000 kg.

[0049] Step 3. Cultivating microorganisms: during the cultivation process, the technological conditions are controlled as follows: pH is 7-7.8, DO is above 3.0 mg / L, and temperature is 20-30°C. The discharge of the culture solution is carried out intermittently, and the culture period is 24 hours. After the first cultivation, discharge 50% of the bacterial liquid. After t...

Embodiment 2

[0054] A fertilizer wastewater

[0055] Step 1. Preparation of nutrient solution: Weigh 8kg (NH4)2CO3, 2kg potassium dihydrogen phosphate, 0.5kgMgSO4, 0.2kg Co(NO3)2, 1kg molasses, mix well, add dechlorinated tap water to 100kg, stir to dissolve.

[0056] Step 2. Preparation of culture medium: The culture system uses two Yitaike environmental protection biological online automatic incubators, which operate alternately. Weigh 3kg of the above-mentioned nutrient solution, 3kg of Baitean nitrifying bacteria solution, and 3kg of 100-mesh diatomite powder, stir, and add dechlorinated tap water to 1000kg.

[0057] Step 3. Cultivating microorganisms: during the cultivation process, the technological conditions are controlled as follows: pH is 7-7.8, DO is above 3.0 mg / L, and temperature is 20-30°C. The cultivation and discharge are carried out intermittently, and the cultivation period is 24 hours. After the first cultivation, discharge 50% of the bacterial liquid. After the disch...

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Abstract

The invention relates to a processing method for removing ammonia nitrogen through high-salt low-carbon industrial waste water continuous biological synergism, which comprises the following steps and process conditions: preparing nutrient solution required by activating biological species: 5-10 percent of inorganic nitrogen and phosphorus A group, 1-2 percent of inorganic nitrogen and phosphorus B group, 0.3-3 percent of trace element, and 0.5-1 percent of promoted materials; preparing culture solution comprising the following components in percentage by mass: 0.1-10 percent of biological species; 0.01-1 percent of carrier, 0.1-1 percent of nutrient solution required by activating the biological species, and the balance of antichloration tap water, wherein the ammonia nitrogen concentration of the culture solution is controlled to be 100-300mg / L; keeping the culture conditions: pH being 7-7.8, DO (Dissolved Oxygen) being more than 3.0mg / L, and temperature being 20-30 DEG C; discharging the culture solution intermittently; continuously feeding the culture solution in site and taking measures to prolong the staying time of the biological species in an aeration tank, so that the nitrification effect is improved. The culture solution is fed continuously or intermittently. According to the processing method, the investment and the operating cost are reduced, an operation process is convenient to manage, water is discharged well, and obvious improvement is achieved.

Description

Technical field: [0001] The invention relates to water, waste water and sewage treatment, and more specifically relates to a treatment method for continuous bio-synergistic removal of ammonia nitrogen from high-salt and low-carbon industrial waste water. Background technique: [0002] High-salt, low-carbon industrial wastewater is characterized by high salinity, high ammonia nitrogen concentration, and low organic content. The higher salt content causes the osmotic pressure of wastewater to often exceed the tolerance limit of general activated sludge, and the organic components in wastewater are low, which cannot meet the nutritional needs of heterotrophic microorganisms in activated sludge. This makes the general activated sludge method and biofilm method unable to be used to treat this kind of high ammonia nitrogen inorganic industrial wastewater. At present, the treatment of this high-salt inorganic ammonia-nitrogen wastewater is mainly the breakpoint chlorine chlorinati...

Claims

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Application Information

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IPC IPC(8): C02F3/02C02F3/34C12N1/20
CPCY02W10/10
Inventor 王亦宁
Owner 宜态科环保技术(苏州)有限公司
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