不同控制条件对CRI系统中亚硝氮积累的影响
Effects of different control conditions on the accumulation of nitrite nitrogen in CRI system
人工快渗系统对总氮（TN）去除效率低，短程硝化反硝化为其高效低耗脱氮提供了一条新途径，实现较高浓度的亚硝氮积累是短程硝化反硝化脱氮的基础。通过构建人工快渗模拟柱，考察了不同进水pH值、有机负荷、水力负荷和湿干比条件下系统内氮素污染物的转化规律。结果表明，当控制进水pH为8.0、COD负荷为200mg/L、水力负荷为1.0m/d、湿干比为1：3时，人工快渗系统能获得相对较高的氨氮去除率和亚硝氮积累率。
he TN removal efficiency in constructed rapid infiltration（CRI）system was low. Shortcut nitrification-denitrification provides an efficient and low-cost way for its nitrogen removal, and a higher concentration of nitrite accumulation is the basis of shortcut nitrification-denitrification. By constructing CRI simulation system, the nitrogen moving and transforming law in the system was studied under different influent pH values, organic loads, hydraulic loads and wet-dry ratios. The results showed that when the influent pH was 8.0, the COD load was 200mg/L, the hydraulic load was 1.0m/d and the wet-dry ratio was 1:3, the CRI system can obtain relatively high ammonia nitrogen removal rate and nitrite accumulation rate.
杨旭、张建强、李佳
环境污染、环境污染防治
亚硝氮控制条件人工快渗系统脱氮
nitrite nitrogencontrol conditionsCRI systemnitrogen removal
杨旭,张建强,李佳.不同控制条件对CRI系统中亚硝氮积累的影响[EB/OL].(2016-11-23)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201611-305.点此复制
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