[1]李鹏峰,隋克俭,李家驹,等.破碎厨余垃圾进入市政污水管网的若干问题[J].中国给水排水,2020,36(16):35-39.
LI Peng-feng,SUI Ke-jian,LI Jia-ju,et al.Several Problems of Broken Kitchen Waste into Municipal Sewage Pipe Network[J].China Water & Wastewater,2020,36(16):35-39.
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LI Peng-feng,SUI Ke-jian,LI Jia-ju,et al.Several Problems of Broken Kitchen Waste into Municipal Sewage Pipe Network[J].China Water & Wastewater,2020,36(16):35-39.
破碎厨余垃圾进入市政污水管网的若干问题
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第36卷
期数:
2020年第16期
页码:
35-39
栏目:
出版日期:
2020-08-17
- Title:
- Several Problems of Broken Kitchen Waste into Municipal Sewage Pipe Network
- Keywords:
- broken kitchen waste; municipal pipe network; optimal precipitation time; critical velocity
- 摘要:
- 围绕厨余垃圾破碎进入市政污水管网的可行性，开展了破碎厨余垃圾的常规指标测试、静沉试验、管道流动模拟试验等研究。根据破碎厨余垃圾的常规指标检测结果，测算其COD ∶TN ∶TP约为200 ∶4.5 ∶1。静沉试验表明，破碎厨余垃圾静沉后分为油脂层、清液层、悬浊层和沉积层，所占比例分别为5%、40%~60%、20%~30%、10%，破碎厨余垃圾的最优静沉时间为5 h。模拟验证了破碎厨余垃圾在管道中流动的临界流速为0.21 m/s，小于室外排水规范要求的0.6 m/s，破碎厨余垃圾理论上不会在污水管道内沉积。综合以上试验结果，结合我国市政排水管网存在的结构性和功能性缺陷，探讨了破碎厨余垃圾入市政污水管网的潜在影响、实施优点及难点。研究表明，在我国现状管网条件下推行破碎厨余垃圾入市政管网的条件还不够成熟，需慎重考虑。
- Abstract:
- To detemine the feasibility of broken kitchen waste draining into the municipal sewage pipe network, the conventional indicators detection, static settling test, pipeline flow simulation test and other research of the broken kitchen waste were carried out. The conventional index of broken kitchen waste showed that its COD ∶TN ∶TP was about 200 ∶4.5 ∶1.The static settling test showed that the broken kitchen waste was divided into grease layer, supernatant layer, suspended layer and sedimentary layer, the proportion was 5%, 40%-60%, 20%-30%, 10%, respectively, and the optimal static settling time of broken kitchen waste was 5 h. The simulation verified that the critical flow rate of broken kitchen waste flowing in the pipe was 0.21 m/s, which was less than 0.6 m/s required by outdoor drainage specification, and the broken kitchen waste would not be deposited in the sewage pipe in theory. Based on the above test results and the structural and functional defects of the municipal drainage pipe network in China, the potential influence, implementation advantages and difficulties of the broken kitchen waste into the municipal sewage pipe network were discussed. The research showed that the conditions for implementing the broken kitchen waste into the municipal pipe network are not mature enough under the conditions of the current state pipe network in China, which should be carefully considered.
相似文献/References:
[1]方文敏,洪霄伟,张赐华,等.破碎厨余垃圾对公共排水系统的影响[J].中国给水排水,2023,39(1):34.
FANGWen-min,HONGXiao-wei,ZHANGCi-hua,et al.Influence of Crushed Kitchen Waste on Public Drainage System[J].China Water & Wastewater,2023,39(16):34.
更新日期/Last Update:
2020-08-17