序批式生物膜反应器去除猪场厌氧消化液中的总磷
Total phosphorus removal in swine’s anaerobic digestion by sequencing batch biofilm reactor
-
摘要: 针对猪场废水的危害和难处理性分析了温度、氨氮和COD对序批式生物膜反应器(SBBR)处理猪场厌氧消化液的除磷效果的影响。实验结果表明,(1)一定温度范围内温度升高不利于SBBR对厌氧消化液的除磷作用;(2)随着进水厌氧消化液氨氮浓度的增加,SBBR对总磷的去除效率从刚开始93.5%降到38.1%,氨氮浓度的升高不利于总磷的去除;(3)过量的碳源会导致反应器除磷效果下降,进水COD浓度宜在800~900 mg/L。Abstract: With the hazard and intractability of swine wastewater, it was analyzed that the temperature, ammonia nitrogen and COD impact on the SBBR phosphorus removal of swine’s anaerobic digestion. The results showed that: (1) in a certain range of temperatures, the higher of the temperature,the lower of phosphorus removal; (2) with the increase of the influent ammonia nitrogen concentration in anaerobic digestion, the rate of phosphorus removal reduced from 93.5% to 38.1%, so the increase of ammonia nitrogen concentration would result in the decrease of pH value, which was detrimental to the removal phosphorus;(3) an excessive amount of carbon source would decrease the efficiency of phosphorus removal, so the appropriate influent COD concentration arranged from 800 mg/L to 900 mg/L.
-
Key words:
- SBBR /
- swine wastewater /
- phosphorus removal /
- effect
-
-

计量
- 文章访问数: 1939
- HTML全文浏览数: 924
- PDF下载数: 855
- 施引文献: 0