建筑给排水设计中的若干问题探讨

在建筑工程中,给排水系统是主要建筑功能系统之一,给排水系统设计的科学性与合理性,不仅在一定程度上决定着给排水系统的运行状态和运行效果,也会对建筑用户和建筑物的安全性造成重大影响,虽说目前建筑行业的总体发展态势极为良好,但是在建筑给排水设计方面仍有不足之处。基于此,本文以分析建筑给排水设计主要内容为切入点展开论述,然后立足于多个方面,全面梳理建筑给排水设计中比较容易出现的问题及相应的优化策略。

Purification Effect of Constructed Wetlands for Treating River Water Flowing from Phosphate Mine Areas into Fuxian Lake

[ Objective] The study aimed at discussing the purification effect of constructed wetlands for treating river water flowing from phosphate mine areas into Fuxian Lake. [Method] The running parameters of the constructed wetlands were investigated for one year, and the purification effect of the constructed wetlands for treating the sewage from phosphate mine areas was analyzed. [Result] With the aid of the constructed wet- land, the average removal rates of total nitrogen （TN）, total phosphorus （TP） and CODcr were 52%, 32% and 54%, and the removal effects were best when the designed hydraulic load was 0.67 m3/（ m2 · d）. Running stably for six years, the constructed wetlands had advantages of no power, low resistance and high removal rate. [ Conclusion] The constructed wetlands reduced the load of pollutants from phosphate mine areas into Fuxian Lake effectivelv, which Dlaved important roles in the Drotection of water aualitv of Fuxian Lake.

化学强化法烟气同时脱硫脱氮的动力学研究

对化学强化法提高生物膜填料塔同时脱硫脱氮性能的净化过程,及其动力学进行探讨研究。结果表明:化学刺激作用在化学强化系统中发挥重要作用,化学强化前后,生物膜中的SO_2、NO_x的生化降解反应均为一级反应,且SO_2、NO_x在生物膜中的生化降解反应均为快速生化反应;依据吸附-生物膜理论及其动力学模型,对化学强化前后NO_x的出口浓度、生化去除量及净化效率进行模拟及对比验证表明,利用该理论建立的动力学模型模拟的理论值与实验值之间均具有较好的相关性(相关系数在0.86~0.99)。