| 兼氧-AB工艺处理屠宰废水工程性试验及其微生物学特性研究 |
| 摘要点击 779 全文点击 1094 投稿时间：1992-12-11 |
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| 中文关键词 兼性厌氧-AB工艺 CODcr去除率 屠宰废水 微生物学特性 |
| 英文关键词 facultative anaerobic-AB process slaughterhouse wastewater production test microbiological characteristics |
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| 中文摘要 |
| 废水处理试运行期间,兼性厌氧调节池负荷率平均为0.50kgCODCr/(m3·d),CODCr去除率31.15%;A级污泥负荷BTS平均为4.78kg BOD5/(kg MLSS·d),CODcr去除率53.37%;B级BTS 0.73kg BOD5/(kg MLSS·d),CODCr占除率54.70%.处理出水几项主要污染指标达到《GB8978-88》污水综合排放标准,其中CODCr103.1mg/L(去除88.77%),BOD5 32.0mg/L(去除94.47%),SS 36.1mg/L(去除89.64%),色度26倍(去除80.60%),pH7.72.投入正式运行后,出水水质稳定,相对标准差0.48.在兼性厌氧调节池生物膜中,存在着厌氧发酵微生物区系;好氧处理阶段的A级以细菌为主,B级以原生动物和菌胶团为主,原生动物占优势. |
| 英文摘要 |
| To treat the slaughterhouse wastewater of Neijiang Comprehensive Processing Plant,facultative anaerobic-AB process was used.During the trial operation,the loading rate of facultative anaerobic regulating tank was 0.50kgCODcr/m3, and its removal rate of CODcr(ηCODcr) was 31.15% the sludge loading rate (firs) in A-stage was 4.78kgBOD5/(kgMLSS·d) and ηCODcr=53.37%;in B-stage, BTS=0.73 kgBOD5/(kgMLSS·d) and ηCODcr=54.70%.There was no problem for this process in compliance with the national standards,the effluent had CODcr103.1mg/L(η=88.77%),BOD532.Omg/L(η=94.47%),SS 36.1mg/L(η=89.64%),Color 26 times (η=80.60%),and pH 7.72.When this process was put into formal operation,its effluent quality remain stable with γ=0.48.Results indicated that this process was stable with high efficiency and low investment needed.It is an advanced process worth spreading.There was an anaerobic digestion microorganism community in the biomembrane formed on the support material in facultative anaerobic regulating tank;besides this, there were different biosystematics existing in A and B stages' aerobic tanks, A-stage is predominant in bacteria and B-stage in protozoa.The analysis of the microbiological characteristics of this process offer theoretical basis for using it to treat other kinds wastewater. |
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