THE SOURCE OF HYDROGEN-SULFIDE IN ANOXIC SEDIMENT
THE SOURCE OF HYDROGEN-SULFIDE IN ANOXIC SEDIMENT
复制标题
DOI：
10.1016/0043-1354(85)90146-0
复制
发表时间：
1985-01-01
期刊：
影响因子：
12.8
通讯作者：
MANCY, KH
中科院分区：
文献类型：
--
作者：
DUNNETTE, DA;CHYNOWETH, DP;MANCY, KH
腐败的H2S生产在上4厘米的沉积物在2个小的淡水和富营养化的东南密歇根州，美国，湖泊范围从0.13-1.51，平均0.46毫克S l-1天-1。硫酸盐还原生产的H2S在相同的网站范围从0.7-3.2，平均为1.54毫克S l-1天-1。在4月至10月的研究期间，腐烂的H2S产量占2个湖泊总H2S产量的5.1-53%（平均18.3-27.6%）。35 S标记底物用于估计H2S产生速率。蛋白水解细菌平均为2.2 × 10 - 4。104个细胞/ml沉淀物;硫酸盐还原剂平均为4.8 ×104个细胞/ml沉淀物。腐败硫化氢的产生与蛋白水解细菌的数量高度相关（r2 = 0.84），但硫酸盐还原和硫酸盐还原菌之间的相关性较低（r2 = 0.13）。间质可溶性无机硫酸盐、蛋白质和有机碳与H2S产生率或细菌计数结果没有密切相关性。用于估计H2S生产的天然底物浓度得到动力学生物测定结果的支持。
Putrefactive H2S production in the upper 4 cm of sediment in 2 small freshwater and eutrophic Southeast Michigan, USA, lakes ranged from 0.13-1.51 with an average of 0.46 mg S l-1 day -1. Sulfate reductive production of H2S at the same sites ranged from 0.7-3.2 with an average of 1.54 mg S l-1 day-1. Putrefactive H2S production represented 5.1-53% (average of 18.3-27.6%) of the total H2S produced at the 2 lakes over an April-Oct. study period. 35S-labeled-substrates were used to estimate H2S production rates. Proteolytic bacteria averaged 2.2 .times. 104 cells/ml sediment; sulfate reducers averaged 4.8 .times. 104 cells/ml sediment. Putrefactive hydrogen sulfide production correlated highly with numbers of proteolytic bacteria (r2 = 0.84) but the correlation between sulfate reduction and sulfate reducing bacteria was low (r2 = 0.13). Interstitial soluble inorganic sulfate, protein and organic C were not closely correlated with H2S production rates or bacteria enumeration results. Natural substrate concentrations used to estimate H2S production were supported by kinetic bioassay results.