文章摘要
Effect of Hydrothermal Treatment Temperature on Dissolution of Carbon, Nitrogen and Phosphorus in Sludge
投稿时间:2018-03-06  
DOI:13358/j.issn.1008-813x.2018.03.16
中文关键词: 水热处理温度  剩余污泥  碳、氮、磷
英文关键词: hydrothermal treatment temperature  excess activated sludge  carbon  nitrogen and phosphorus
基金项目:
作者单位
查湘义 辽宁省交通高等专科学校 建筑工程系, 辽宁 沈阳 110122 
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中文摘要:
      为了提高污泥中有机物和无机物的溶出率,改善污泥的厌氧消化效果,研究了水热温度对污泥中碳、氮、磷溶出的影响。结果表明:水热预处理加速了污泥固体有机物的溶出和水解,提高了污泥中碳、氮、磷的溶出效率。在水热温度为200℃的条件下,可溶性化学需氧量(SCOD)提高了168.76%,氨氮和总氮达到最大溶出率。污泥经过厌氧消化后,污泥中磷酸根和总磷的含量明显降低。
英文摘要:
      To increase the dissolution of organic matter and inorganic matter in sludge and improve the anaerobic digestion effect of sludge, the influence of different hydrothermal treatment temperature on the dissolution of carbon, nitrogen and phosphorus in sludge was evaluated in this article. The results showed that hydrothermal treatment accelerated the dissolution and hydrolysis of organic solid and improved the dissolution efficiency of carbon, nitrogen and phosphorus in sludge. Under the condition that the hydrothermal treatment temperature was 200℃, SCOD was improved by 168.76%, and ammonia nitrogen and total nitrogen had the maximum dissolution rate. After anaerobic digestion of sludge, the content of phosphate and total phosphorus in sludge was decreased significantly.
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