研究论文
任南琪,王爱杰,林明.乙酸型顶极群落的内平衡与反馈调节机制研究[J].环境科学学报,2002,22(5):581-585
乙酸型顶极群落的内平衡与反馈调节机制研究
- The internal balance and the feedback adjustment of acetic acid type climax community
- 基金项目：国家自然科学基金项目(59978012)
- 作者
- 单位
- 任南琪
- 哈尔滨工业大学环境生物技术研究中心,哈尔滨 150090
- 王爱杰
- 哈尔滨工业大学环境生物技术研究中心,哈尔滨 150090
- 林明
- 哈尔滨工业大学环境生物技术研究中心,哈尔滨 150090
- 摘要：通过产酸脱硫反应器处理高浓度硫酸盐有机废水的连续流试验,从“动态”角度考察COD SO2-4比改变引起的pH值、氧化还原电位 (ORP)、碱度 (ALK)和末端产物 (VFAs)等的变动及生态因子的叠加效应引发的优势种群变迁,分析了乙酸型顶极群落的稳定性及其发生定向性生态演替的规律,进而阐明了乙酸型顶极群落抵抗环境压力的内平衡与反馈调节机制,并指出乙酸型代谢和乙酸型顶极群落是产酸脱硫生态系统的典型特征.
- Abstract：Continuous flow experiments were conducted in acidogenic sulfate reducing reactor fed with high strength sulfate organic wastewater to investigate the change of pH value, ORP (oxidation reduction potential), VFAs (volatile fat acids) and ALK (alkalinity) subjected to COD/SO2 -4 ratio, and the flux of predominant populations restricted by the alterative ecological factors. The stability of acetic acid type climax community and its ecological succession, were analyzed. The internal balance and feedback adjustment mechanism of the climax community was explained.It was demonstrated that acetic acid type metabolism and acetic acid type climax community were the typical characteristic of acidogenic sulfate reducing ecosystem.
- Key words：de sulfate bio reactor ecological succession climax community ecological factors COD/SO2 -4 ratio internal balance feed back adjusting mechanism
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