Study Of Nitrogen Cycle Of Circulating Water Cooling System In Chemical Fertilizer Plant

Is the center of natural elements cycle the nitrogen cycle process in soil nitrogen transformation of contaminants, eutrophication in lakes, rivers, oceans, sewage treatment and other studies nitrogen inputs and outputs more research in many fields. While in the circulating cooling water system in chemical fertilizer plants, nitrogen cycle is also an important transformation processes, and circulation is closely related to water quality, water conservation, and environmental protection requirements. Summary of previous studies are addressing measures, on the one hand loose enough systems, while most are qualitative summary, the measures taken by the blind, cannot give rise to summary of the theory. This subject for ammonia factory easy occurred leak ammonia, and floating ammonia effects cycle water system of reality, to a fertilizer plant cycle water system for research object, in on nitrogen of sources classification and on strength for quantitative analysis, application nitrogen cycle theory summary antibody nitrogen pigment entered cycle water system hòu occurred of conversion reaction and nitrogen pigment output system of way, proposed ammonia leak, exception situation of effective should measures.Circulating water system of nitrogen input, including floating, floating dust, ammonia and water leakage of ammonia ammonia and prilling tower by using Gaussian dispersion model calculated the concentration of floating dust conditions and shows wind above level 4 or above atmospheric stability class b less impact on the cooling tower when proposed leaking ammonia formula quantifying the leakage analysis of ammonia. Nitrogen output by way of circulating water system, including physical(sewage had one replacement, cooling tower), chemical(oxidizing substances, such as chlorine gas consumption), biological(assimilation and denitrification and anaerobic ammonia oxidation), found that physically is the most important way.For ammonia leakage processing measures, prevention and treatment are equally important, in case of guarantee performance indicators and indicators of water quality spill could have been avoided.Float-seasonal characteristic of ammonia, targeted measures should be taken, in float period of ammonia increase the chlorine dosage, and should promote the nitration works, reducing the ammonia and nitrite levels within the system. If the appropriate measures and ammonia spill situation to ensure the long term operation of the device.