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Swine wastewater COD concentration is high, the high concentration of ammonia nitrogen, suspended solids concentration, its direct emissions on the environment caused serious pollution. For more swine wastewater characteristics of the current swine wastewater pollution control methods are mainly dominated by anaerobic aerobic biological treatment, secondary chemical method, natural treatment method. How to adopt cost-effective way to remove the ammonia to reach the emission standards, has been a piggery wastewater treatment in the face of significant challenges. Anammox has no external organic carbon source, saving the amount of oxygen, reduce energy consumption, etc., at home and abroad in recent years, researchers attention of the new water treatment biological nitrogen removal technology, although anaerobic ammonium researchers at home and abroad denitrification mechanism of the oxidation process, anammox bacteria physiological and biochemical characteristics carried out extensive studies have been reported, but mostly for the study of simulated wastewater to swine wastewater targeted research in the literature There are seldom reported. In this paper, the actual swine wastewater for the study, as in SBR reactor, anaerobic digestion sludge inoculum culture anammox bacteria studied anammox reactor startup and anammox best operating conditions, Experimental studies show that: (1) in NH 4 -N and NO 2 - -N concentration was 100mg / L, conditions, consuming more than four months, the experience starts early transition period, the stable operation of the three phases, the successful implementation of anaerobic ammonia oxidation reactor startup, start after the end of the anaerobic ammonia oxidation reactor NH 4 -N removal rate of 91.70%, NO 2 - -N removal rate of 92.0%; NH 4 -N volumetric loading was 36.90mg / L · d, NO 2 - -N volumetric loading was 37.55mg / L · d; (2) in the influent concentration from 100mg / L to 450mg / L of the promotion process, the reactor because of oxygen into the anammox bacteria produce inhibition, rapid removal decrease, after the recovery of the test conditions, the removal efficiency gradually improve stability, indicating that the activity of anaerobic ammonium oxidizing bacteria are recoverable. (3) through the analysis of pH, temperature, HRT and other single factor on the anammox reaction, results in a high concentration of ammonia water conditions suitable for anaerobic ammonium oxidation runs between pH 7.5 to 8.0, the appropriate temperature between the 32 ~ 34 ℃, the optimum hydraulic retention time of 12d; (4) in the single-factor test, based on the conduct of pH, temperature, HRT three comprehensive test parameters, test results showed that the removal efficiency is a measure of standards for each parameter degree of influence anammox order was: pH, temperature, HRT. ANAMMOX best operating conditions as: pH: 7.5; temperature: 33 ± 1 ℃, HRT: 1.2d.
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