餐厨垃圾高温厌氧消化过程参数研究
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摘要
试验以餐厨垃圾为原料,在55℃±0.5℃条件下模拟高温厌氧反应器实际工程运行条件,研究分析高温厌氧消化失衡、平衡以及高负荷阶段的产气、碱度、挥发性脂肪酸、氨氮浓度等参数的变化。结果表明,在碱度为7000 mg·L~(-1)以下时,主要表现为挥发性脂肪酸的积累造成的失衡;在碱度达到10500 mg·L~(-1)以后,主要表现为铵盐积累造成的失衡。另外,通过统计分析得到,当总碱度在7000～10500 mg·L~(-1),酸碱比控制在0～0.3,总氨氮(TAN)浓度在3500 mg·L~(-1)以下时,消化系统最稳定,系统容积产气率最高可以达到5.63 m~3·m~(-3)d~(-1)。
In this paper, kitchen waste was used as raw material, actual operation condition of thermophilic anaerobic digestion(55℃±0.5℃) was simulated, the imbalance and equilibrium of the digestion were analyzed, and the parameters of gas production, total alkalinity, volatile fatty acids, and ammonia, et al were investigated. The result showed that, when the alkalinity was below 7000 mg·L~(-1), imbalance was mainly caused by the accumulation of volatile fatty acids. After the alkalinity reached 10500 mg·L~(-1), the imbalance was mainly caused by the accumulation of ammonium salt. In addition, according to the statistical analysis, it was found that when the total alkalinity was 7000～10500 mg·L~(-1), the acid-alkali ratio 0～0.3, and the total ammonia nitrogen(TAN) below 3500 mg·L~(-1), the digestion system was the most stable, and the volumetric gas production rate could reach 5.63 m~3·m~(-3)d~(-1).
In this paper, kitchen waste was used as raw material, actual operation condition of thermophilic anaerobic digestion(55℃±0.5℃) was simulated, the imbalance and equilibrium of the digestion were analyzed, and the parameters of gas production, total alkalinity, volatile fatty acids, and ammonia, et al were investigated. The result showed that, when the alkalinity was below 7000 mg·L~(-1), imbalance was mainly caused by the accumulation of volatile fatty acids. After the alkalinity reached 10500 mg·L~(-1), the imbalance was mainly caused by the accumulation of ammonium salt. In addition, according to the statistical analysis, it was found that when the total alkalinity was 7000～10500 mg·L~(-1), the acid-alkali ratio 0～0.3, and the total ammonia nitrogen(TAN) below 3500 mg·L~(-1), the digestion system was the most stable, and the volumetric gas production rate could reach 5.63 m~3·m~(-3)d~(-1).
引文
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[8] 何琴,李蕾,彭爽,等.餐厨垃圾厌氧消化起泡现象研究[J].中国环境科学,2017,37(3):1040-1050.
[9] 唐波,李蕾,何琴,等.总氨氮在餐厨垃圾厌氧消化系统中的积累及其抑制作用[J].环境科学学报,2016,36(1):210-216.
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[12] Ganidi N,Tyrrel S,Cartmel E.Anaerobic digestion foaming causes-A review[J].Bioresource Technology,2009,100:5546-5554.
[13] 戴晓虎,何进,严寒,等.游离氨调控对污泥高含固厌氧消化反应器性能的影响[J].环境科学,2017,38(2):6637-6643.
[14] Yenigün O,Demirel B.Ammonia inhibition in anaerobic digestion:Areview[J].Process Biochem,2012,118:210-218.
[15] 何琴,李蕾,赵小飞,等.R-PFR与CSTR厌氧消化餐厨垃圾运行效率及微生物群落结构对比[J].环境科学学报,2017,03:1-20.
[2] 王颢,赵明星,阮文权.餐厨垃圾两相与单相厌氧消化过程参数分析[J].环境工程学报,2016,10(2):873-879.
[3] 贺延龄.废水的厌氧生物处理[M].北京:中国轻工业出版社,1998:502-563.
[4] 国家环境保护总局.水和废水监测分析方法(第四版)[M].北京:中国环境科学出版社,2002:105-220.
[5] Feng Y J,Tseng S K,Hisa T H,et al.Partial nitrification of ammonia-rich wastewater as pretreatment for anaerobic ammonia oxidation(ANAMMOX) using membrane aeration bioreactor[J].Journal of bioscience and bioengineering,2007,104:182-187.
[6] APHA.Standard methods for the examination of water and wastewater[M].Washington,D C:American Public Health Association,America Water Works Association,Water Environment Federation,1999.
[7] 于雷,彭剑锋,宋永会,等.厌氧反应器的酸化及其恢复研究进展[J].工业水处理,2011,31(8):1-4.
[8] 何琴,李蕾,彭爽,等.餐厨垃圾厌氧消化起泡现象研究[J].中国环境科学,2017,37(3):1040-1050.
[9] 唐波,李蕾,何琴,等.总氨氮在餐厨垃圾厌氧消化系统中的积累及其抑制作用[J].环境科学学报,2016,36(1):210-216.
[10] Weiland P.Biogas production:current state and perspectives[J].Applied Microbiology and Biotechnology,2010,85(4):849-860.
[11] Rajagopal R,Massé D I,Singh G.A critical review on inhibition of anaerobic digestion process by excess ammonia[J].bioresource Technology,2013,143:632-641.
[12] Ganidi N,Tyrrel S,Cartmel E.Anaerobic digestion foaming causes-A review[J].Bioresource Technology,2009,100:5546-5554.
[13] 戴晓虎,何进,严寒,等.游离氨调控对污泥高含固厌氧消化反应器性能的影响[J].环境科学,2017,38(2):6637-6643.
[14] Yenigün O,Demirel B.Ammonia inhibition in anaerobic digestion:Areview[J].Process Biochem,2012,118:210-218.
[15] 何琴,李蕾,赵小飞,等.R-PFR与CSTR厌氧消化餐厨垃圾运行效率及微生物群落结构对比[J].环境科学学报,2017,03:1-20.