焦点提醒：SBR/RO工艺源分手尿液处置特征研究 马跃龙1, 徐瑶瑶1, 刘宁2, 李彤彤1, 石烜1, 金鑫1, 金鹏康1(1.西安建筑科技年夜学情况与市政项目学院，陕西西安710055；2.中国石油长庆油田分公司油气工艺研究院，陕西西安710018)[1]马跃龙,徐瑶瑶,刘宁,等.SBR/RO工艺源分手尿液处置特征研究[J].中国给水排水,���λ�app2020,36(21):7-14.　MA Yue-long,XU Yao-yao,LIU Ning,et al.Treatment Characteristics of Source-separated Urine by SBR/RO Process[J].China Water & Wastewater,2020,36(21):7-14.点击复制

SBR/RO工艺源分手尿液处置特征研究中国给水排水[ISSN:1000-4062/CN:12-1073/TU]卷:36期数:2020年第21期页码:7-14栏目:出书日期:2020-11-01

Title:

Treatment Characteristics of Source-separated Urine by SBR/RO Process

作者:

马跃龙^{1,徐瑶瑶1,刘宁2,李彤彤1,石烜1,金鑫1,金鹏康1}

(1.西安建筑科技年夜学情况与市政项目学院，陕西西安710055；2.中国石油长庆油田分公司油气工艺研究院，陕西西安710018)

Author(s):

MA Yue-long^{1,XU Yao-yao1,LIU Ning2,LI Tong-tong1,SHI Xuan1,JIN Xin1,JIN Peng-kang1}

(1. School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China; 2.Petroleum Technology Research Institute of Petrochina Changqing Oilfield Company, Xi’an 710018, China)

要害词:

尿液;源分手;反渗入;序批式活性污泥法;碳源

Keywords:

urine;source-separation;reverse osmosis;sequencing batch reactor;carbon source

摘要:

针对源分手生态茅厕中尿液处置后难以回用的问题，设想开辟了SBR/RO尿液处置系统，研究了SBR耦合RO工艺的最优工况和其对尿液中污染物的去除特征。成果注解，SBR的硝化机能随污泥浓度的升高而加强，pH值是影响系统硝化机能的首要身分，将其污泥浓度晋升至12 g/L，pH值保持在7.0~8.0，可避免反映系统内因尿液中尿素分化发生的NH+4-N堆集对系统出水水质的晦气影响。为削减反硝化反映时候，阐发了进水碳源品种和比例对尿液中污染物去除速度的影响，成果注解，采取葡萄糖/乙酸钠夹杂碳源（质量比为0.73 ∶1）时，系统对污染物的去除速度最高，反映所需时候最短，是以将外加碳源优化为此夹杂碳源，同时将缺氧段与曝气段时候调剂为1 h和5 h。在最优前提下持续运转SBR/RO系统，此中SBR系统对尿素和NH_{4^{+-N的去除率年夜在99%，出水NO2--N和NO3--N浓度别离不变在18~33、85~110 mg/L。SBR/RO工艺对尿液中的污染物去除结果较着，出水水质知足《城市污水再生操纵 城市杂用水水质》（GB/T 18920—2002）中的冲厕用水水质尺度。}}

Abstract:

Aiming at the problem of difficulty in reusing urine in source-separated ecological toilets, a combined urine treatment system of sequencing batch reactor (SBR) and reverse osmosis (RO) was designed and developed, and the optimal operating conditions of the coupling SBR/RO process and its removal characteristics of urine pollutants were studied. The nitrification performance of the SBR increased with the increase of the sludge concentration,and pH was the main factor affecting the nitrification performance. Therefore, influence of NH_{4^{+-N accumulation generated by the decomposition of urea in SBR on the effluent quality could be avoided by increasing the sludge concentration to 12 g/L and maintaining the pH between 7.0 and 8.0. In order to reduce the reaction time of the denitrification stage, influence of the type and proportion of influent carbon source on removal efficiency of pollutants in urine was analyzed. When mixed carbon source of glucose/sodium acetate (mass ratio 0.73 ∶1) was used, the system had the highest pollutants removal efficiency and the shortest reaction time. Therefore, the influent carbon source was optimized to be a mixed carbon source, and the anoxic and aeration reaction time were adjusted to 1 h and 5 h. The SBR/RO system was continuously operated under the optimal conditions. The removal efficiencies of urea and NH4+-N in the SBR system were more than 99%, and the effluent NO2--N and NO3--N concentrations were stably maintained at 18-33 mg/L and 85-110 mg/L, respectively. The SBR/RO system had a significant effect on the removal of pollutants in urine, and the effluent quality of the system met the flushing water quality standard specified in The Reuse of Urban Recycling Water—Water Quality Standard for Urban Miscellaneous Water Consumption (GB/T 18920-2002).}}

类似文献/References:

[1]张健,李孟飞,李萌,等.负压排水手艺在村落污水搜集中的利用[J].中国给水排水,2020,36(22):66.ZHANG Jian,LI Meng-fei,LI Meng,et al.Application of Negative Pressure (Vacuum) Drainage Technology in Collection of Rural Sewage[J].China Water & Wastewater,2020,36(21):66.

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