不同碱剂对污泥与餐厨垃圾联合厌氧发酵产氢余物产甲烷的影响  

Impact of different alkali agents on methanogenesis of residue from anaerobic fermentative hydrogen production using combined sludge and food waste

作　　者：郑育毅[1] 林鸿[1] 林志龙[1] 罗鸿信[1] 刘常青[2] 

机构地区：[1]福建师范大学环境科学研究所,福州350007 [2]福建师范大学地理科学学院,福州350007

出　　处：《环境工程学报》2016年第1期393-398,共6页Chinese Journal of Environmental Engineering

基　　金：福建省科技厅重大专项(2014YZ0002-1);福建省自然科学基金资助项目(2015J01187);福建省科技厅软科学研究计划(2014R0041)

摘　　要：为了使污泥与餐厨垃圾联合厌氧发酵产氢余物产甲烷后的沼渣得到有效利用,研究了以Ca(OH)_2代替NaOH作为碱剂调节产氢余物与污泥混合物初始pH进行厌氧发酵产甲烷情况。结果表明,以NaOH和Ca(OH)_2作为碱剂的消化系统厌氧发酵产甲烷的最佳接种量均为50%,且产甲烷率和比产甲烷速率相差不大,分别为60.48mL/(g·DS)、2.16mL/(g·DS·d)和58.68mL/(g·DS)、2.35mL/(g·DS·d),两种消化系统的COD、总糖和总蛋白质的降解率分别为63.0%、25.7%、47.1%和56.7%、23.6%、45.7%。以Ca(OH)_2代替NaOH作为碱剂调节反应物初始pH进行厌氧发酵产甲烷是可行的。For effective use of biogas residue after methanogenesis of residue from anaerobic fermentative hydrogen production using combined sludge and food waste,the use of Ca（ OH）2instead of Na OH acted as alkali agent to adjust the initial pH of the mixture of residue from hydrogen production and sludge for anaerobic fermentative methane production was studied. The results showed that the optimum inoculation volumes of the two digestion systems with Na OH and Ca（ OH）_2alkali agents were 50%,and the specific methane potential and methane production rates were 60. 48 mL /（ g·DS）,2. 16 mL /（ g·DS·d） and 58. 68 mL /（ g·DS）,2. 35 mL /（ g·DS·d）,respectively. The degradation rates of COD,total saccharide and total protein in the two digestion systems were 63. 0%,25. 7%,47. 1% and 56. 7%,23. 6%,45. 7%,respectively. The use of Ca（ OH）_2 instead of Na OH as alkali agent to adjust the initial pH of reactants for anaerobic fermentative methane production is feasible.

关 键 词：污泥 餐厨垃圾 产氢余物 NAOH CA(OH)2 甲烷 

分 类 号：X705[环境科学与工程—环境工程]