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Synthesis and application of a new ammonia nitrogen adsorption degradation agent
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A technology of adsorption and degradation, ammonia nitrogen, applied in chemical instruments and methods, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve the problem of high operating costs, achieve broad application prospects, and achieve the effect of efficient and rapid degradation
Active Publication Date: 2022-04-15
山西博允环保新科技有限公司
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The acidity, alkalinity and temperature of these water bodies can be changed, but the operating costs are high
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preparation example Construction
[0017] The preparation method of novel ammonia nitrogen adsorption degradation agent, carries out according to the following steps:
[0019] (2) Leave the mixed solution obtained in step (1) to stand for 1 to 3 hours, and take the supernatant;
[0020] (3) Add a certain amount of concentrated ammonia water to the liquid obtained in step (2), stir continuously, and react at 60-80° C. for 3-8 hours;
[0021] (4) continue to react the mixture obtained in step (3) at 90-150° C. for 3-6 hours, and collect the solid;
[0022] (5) Dry the solid obtained in step (4) at 150-300° C. for 3-5 hours, and collect the solid;
[0023] (6) uniformly mixing the solid obtained in step (5) with a certain amount of active biological bacteria containing 10% water to prepare...
[0029] (2) Leave the mixed solution obtained in step (1) for 2 hours, and take the supernatant;
[0030] (3) Add 70mL of concentrated ammonia water to the liquid obtained in step (2), stir continuously, and react at 70°C for 5h;
[0031] (4) continue to react the mixture obtained in step (3) at 95° C. for 5 h, and collect the solid;
[0032] (5) Dry the solid obtained in step (4) at 200° C. for 3 h, and collect the solid;
[0033] (6) Uniformly mix the solid obtained in step (5) with 60 g of spores containing 10% water to prepare the ammonia nitrogen adsorption degradation agent. Denoted as CAM-1.
[0034] CAM-1 was added to a certain domestic sewage in Taiyuan City at a ratio of 0.1%. After 8 hours, the ammonia nitrogen in the water before and after the addition was tested. The results are shown in Table 1.
Embodiment 2
[0036] Change the quality of the zirconium nitrate in the step (1) of Example 1 to 0.5 g.
[0037] Other steps are the same as in Example 1.
[0038] The obtained polymer is designated as CAM-2.
[0039] The experiment of removing ammonia nitrogen is the same as in Example 1, and the results are shown in Table 1.
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Abstract
The invention provides the synthesis and application of a novel ammonianitrogen adsorption degradation agent, belonging to the technical field of ammonianitrogenwastewater treatment. The synthesis method of the ammonianitrogen adsorption degradation agent is as follows: firstly, using bauxite, zirconiumnitrate or zirconiumoxide, sulfuric acid or phosphoric acid and ammonia water as raw materials, an imprinted adsorption material capable of highly selectively adsorbing ammonia nitrogen is synthesized. Then, the active biological bacteria are loaded in the pores of the adsorption material to ensure that it can degrade the ammonia nitrogen enriched on the surface of the imprinted adsorption material in a short distance and efficiently. This technology makes full use of the characteristics of good physical adsorption performance of modified aluminum iron ore, environmental protection of biological bacteria, low energy consumption and high degradation rate. The results also prove that this kind of ammonia nitrogen adsorption degradation agent has excellent performance of rapid removal of ammonia nitrogen.
Description
technical field [0001] The invention relates to the synthesis and application of a novel ammonia nitrogen adsorption degradation agent, and belongs to the technical field of ammonia nitrogen wastewater treatment. Background technique [0002] Ammonia nitrogen refers to the free ammonia (NH 3 ) and ammonium ions (NH 4 + ) in the form of nitrogen. Ammonia nitrogen in water can be converted into nitrite under certain conditions. If consumed for a long time, nitrite in water will combine with protein to form nitrosamine, which is a strong carcinogen and very harmful to human body. Ammonia nitrogen is also the main oxygen-consuming pollutant in water bodies, which is poisonous to fish and some aquatic organisms. Especially since the Ministry of Environmental Protection set ammonia nitrogen, COD and pH as mandatory inspection indicators for sewagedischarge in 2015, people have paid special attention to the degradation of ammonia nitrogen in various water bodies (fish ponds, w...
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