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五格式净粪池(FcPTR)启动特性研究

杨延梅,  罗勇,  谭伟,  蒋进元,  赫昶钧,  李加加,  陈可

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文章导航 > 环境工程技术学报  > 2023 >  13(1): 255-261
杨延梅，罗勇，谭伟，等.五格式净粪池(FcPTR)启动特性研究[J].环境工程技术学报，2023，13（1）：255-261 doi: 10.12153/j.issn.1674-991X.20210847
引用本文: 杨延梅，罗勇，谭伟，等.五格式净粪池(FcPTR)启动特性研究[J].环境工程技术学报，2023，13（1）：255-261 doi: 10.12153/j.issn.1674-991X.20210847
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YANG Y M,LUO Y,TAN W,et al.Study on the start-up characteristics of five-compartment purification tank reactor (FcPTR)[J].Journal of Environmental Engineering Technology，2023，13（1）：255-261 doi: 10.12153/j.issn.1674-991X.20210847
Citation: YANG Y M,LUO Y,TAN W,et al.Study on the start-up characteristics of five-compartment purification tank reactor (FcPTR)[J].Journal of Environmental Engineering Technology，2023，13（1）：255-261 doi: 10.12153/j.issn.1674-991X.20210847
shu

五格式净粪池(FcPTR)启动特性研究

doi: 10.12153/j.issn.1674-991X.20210847
  • 1.

    重庆交通大学河海学院

  • 2.

    中国环境科学研究院

基金项目: 国家重点研发计划项目(2018YFD1100505)
详细信息
    作者简介:

    杨延梅(1975—)，女，教授，主要从事水污染控制理论与实用技术，cqyymei@163.com

    通讯作者:

    蒋进元(1974—)，男，研究员，主要从事水污染控制技术开发与应用，istiger@163.com

  • 中图分类号: X703

Study on the start-up characteristics of five-compartment purification tank reactor (FcPTR)

  • 1.

    School of River and Ocean Engineering, Chongqing Jiaotong University

  • 2.

    Chinese Research Academy of Environmental Sciences

    摘要
  • 摘要:

    针对三格式化粪池(TcST)出水不达标的问题，构建了一种与TcST容积相等的五格式净粪池(FcPTR)，开展FcPTR与TcST处理实际生活污水的启动特性对比研究。结果表明，第13天〔水力停留时间（HRT）为80 h〕，FcPTR和TcST对CODCr的去除率分别降至44%和31%。第46天，通过降低HRT至36 h，FcPTR和TcST对CODCr的去除率分别升至86%和61%；FcPTR厌氧折流1区pH普遍大于厌氧折流2区，FcPTR厌氧区酸碱比为0.12~0.20，表明FcPTR具有较好的产酸产甲烷相分离特性。通过扫描电镜图分析FcPTR中填料挂膜和污泥生长情况，结果表明在第46天填料挂膜成功，污泥中微生物主要以短杆菌和球状菌为主。FcPTR相对于TcST具有较好的处理效果，CODCr出水达到GB 18918—2002《城镇污水处理厂污染物排放标准》一级A标准。

     

    Abstract:

    A five-compartment purification tank reactor (FcPTR) with the same volume as three-compartment septic tank (TcST) was constructed to address the problem of substandard effluent from TcST, and a study of the start-up characteristics of FcPTR and TcST for treating actual domestic wastewater was conducted. The results showed that the removal rates of FcPTR and TcST of CODCr decreased to 44% and 31%, respectively, on the 13th day (HRT is 80 h). On the 46th day (HRT is 36 h), the removal rates of FcPTR and TcST of CODCr increased to 86% and 61%, respectively, by reducing HRT. On the 46th day, pH of FcPTR anaerobic fold 1 zone was generally larger than that of anaerobic fold 2 zone, and the acid to basic ratio of FcPTR anaerobic zone was 0.12-0.20, which had better acidification and methanation separation characteristics. On the 46th day, the filler and sludge in FcPTR were observed by sweeping electron microscopy, the morphology of biofilm on the fillers was successful, and the microorganisms in the sludge were mainly short bacilli and spherical bacteria. Research shows FcPTR had a better treatment effect than TcST, and CODCr effluent reached the Class Ⅰ A of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plants (GB 18918-2002).

     

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  • 图  1  试验装置

    Figure  1.  Experimental setup diagram

    下载: 全尺寸图片 幻灯片

    图  2  FcPTR和TcST启动期进出水CODCr及去除率

    Figure  2.  CODCr and removal rate of inlet and outlet water during FcPTR and TcST startup

    下载: 全尺寸图片 幻灯片

    图  3  FcPTR各单元CODCr处理贡献率

    Figure  3.  Contribution rate of CODCr treatment of FcPTR units

    下载: 全尺寸图片 幻灯片

    图  4  FcPTR和TcST中pH变化

    Figure  4.  Variation of pH in FcPTR and TcST

    下载: 全尺寸图片 幻灯片

    图  5  FcPTR和TcST中VFA浓度变化

    Figure  5.  Variation of VFA concentrations in FcPTR and TcST

    下载: 全尺寸图片 幻灯片

    图  6  FcPTR和TcST中碱度变化

    Figure  6.  Variations of alkalinity in FcPTR and TcST

    下载: 全尺寸图片 幻灯片

    图  7  FcPTR中厌氧区不同时期填料表观的变化

    Figure  7.  Apparent variation of filler in the anaerobic zone in FcPTR at different periods

    下载: 全尺寸图片 幻灯片

    图  8  FcPTR厌氧区填料SEM图

    Figure  8.  SEM images of filler in the anaerobic zone of the FcPTR

    下载: 全尺寸图片 幻灯片

    图  9  第43天FcPTR厌氧区污泥SEM图

    Figure  9.  SEM images of sludge in the anaerobic area of FcPTR on the 43rd day

    下载: 全尺寸图片 幻灯片

    表  1  PU填料和火山岩填料性质及填充率

    Table  1.   Properties and filling rate of PU filler and volcanic rock filler

    填料规格/mm孔隙率/%比表面积吸水性/%填充率/%
    PU30×30×3096~99≥18 000 m2/m320040
    火山岩$\phi $86512 m2/kg6580
    下载: 导出CSV

    表  2  FcPTR和TcST运行参数

    Table  2.   Operated parameters of FcPTR and TcST

    项目阶段Ⅰ阶段Ⅱ
    时间/d1~1314~46
    有机负荷/﹝kg/(m3·d)﹞0.060.13
    HRT/h8036
    FcPTR好氧区DO浓度/(mg/L)1.8±0.31.8±0.3
    温度/℃36±236±2
    下载: 导出CSV
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