中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 不同温度水热预处理脱水污泥试验研究 中国沼气 2019 (1) 31-35
Position: Home > Articles > Effect of Hydrothermal Pretreatment of Dehydrated Sludge with Different Temperature China Biogas 2019 (1) 31-35

不同温度水热预处理脱水污泥试验研究

作  者：
徐秋子;段娜;林聪;翟志滨
单  位：
中国农业大学水利与土木工程学院;启迪桑德环境资源股份有限公司
关键词：
脱水污泥;水热预处理;化学需氧量溶解度;挥发性有机酸
摘  要：
针对市政脱水污泥直接厌氧消化产气率低等问题,文章探究了脱水污泥在不同温度(150℃,180℃,210℃)水热预处理下COD溶解度、氨氮、VFAs浓度等的变化规律,结果表明水热预处理可破坏污泥絮体结构和污泥细胞,溶解胞内物质,水解大分子有机物。150℃,180℃,210℃处理后的SCOD由2522 mg·L~(-1)分别升至14902,23245,23895 mg·L~(-1),COD溶解度分别达到20.34%,34.05%,35.12%,氨氮和挥发性有机酸浓度均显著增加。180℃与210℃处理效果差异较小,建议采用180℃,此时VFA浓度和理论产甲烷量最大。
译  名：
Effect of Hydrothermal Pretreatment of Dehydrated Sludge with Different Temperature
作  者：
XU Qiu-zi;DUAN Na;LIN Cong;ZHAI Zhi-bin;College of Water Resources & Civil Engineering,China Agricultural University;Sound Environmental Resources Co Ltd;
单  位：
XU Qiu-zi%DUAN Na%LIN Cong%ZHAI Zhi-bin%College of Water Resources & Civil Engineering,China Agricultural University%Sound Environmental Resources Co Ltd
关键词：
dewatered sludge;;hydrothermal pretreatment;;COD solubility;;VFA
摘  要：
On account of the low gas production rate of direct anaerobic digestion of dehydrated municipal sludge, in this paper, the hydrothermal pretreatment was used to improve the hydrolysis performance of dehydrated sludge and increase the dissolution of organic matter. The effects of hydrothermal pretreatment with different temperature(150 ℃, 180 ℃, 210 ℃) on COD solubility, ammonia nitrogen and VFAs concentration of dehydrated municipal sludge were investigated. The results showed that, after the hydrothermal pretreatment under 150℃,180℃,210℃, the SCOD were increased from 2522 mg·L~(-1) to 14902, 23245, 23895 mg·L~(-1), respectively, The solubility of COD reached 20.34%, 34.05% and 35.12%,respectively. The differences between 180 ℃ and 210 ℃ pretreatment were not obvious, and so the 180 ℃ hydrothermal pretreatment was recommended.

相似文章

导出引用
计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46