Processing method for removing ammonia nitrogen through high-salt low-carbon industrial waste water continuous biological synergism
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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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[0045] Example 1:
[0046] A petrochemical wastewater
[0047] Step 1. Prepare the nutrient solution: Weigh 8kg (NH4)2CO3, 2kg potassium dihydrogen phosphate, 0.5kg MgSO4, 0.2kg Co(NO3)2, 1kg molasses, mix well, add dechlorinated tap water to 100kg, stir to dissolve.
[0048] Step 2. Preparation of culture solution: The culture system adopts two eco-friendly biological on-line automatic incubators that operate alternately. Weigh 3 kg of the above nutrient solution, 2 kg of Baitean nitrification bacteria solution, and 1 kg of 100 mesh diatomaceous earth powder, stir, and add dechlorinated tap water to 1000 kg.
[0049] Step three, cultivating microorganisms: during the cultivation process, the process conditions are controlled as follows: pH is 7 to 7.8, DO is above 3.0 mg / L, and temperature is 20 to 30°C. The discharge of the culture solution is performed intermittently, and the culture period is 24 hours. After the first culture, 50% of the bacterial liquid is discharged. After th...
Example Embodiment
[0053] Example 2:
[0054] A certain fertilizer wastewater
[0055] Step 1. Prepare the nutrient solution: Weigh 8kg (NH4)2CO3, 2kg potassium dihydrogen phosphate, 0.5kg MgSO4, 0.2kg Co(NO3)2, 1kg molasses, mix well, add dechlorinated tap water to 100kg, stir to dissolve.
[0056] Step 2. Preparation of culture solution: The culture system adopts two eco-friendly biological on-line automatic incubators that operate alternately. Weigh 3 kg of the above nutrient solution, 3 kg of Baitean nitrification bacteria solution, 3 kg of 100 mesh diatomaceous earth powder, stir, and add dechlorinated tap water to 1000 kg.
[0057] Step three, cultivating microorganisms: during the cultivation process, the process conditions are controlled as follows: pH is 7 to 7.8, DO is above 3.0 mg / L, and temperature is 20 to 30°C. Cultivation discharge is carried out intermittently, and the cultivation period is 24 hours. After the first culture, 50% of the bacterial liquid is discharged. After the dischar...
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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...
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