基于模糊隶属函数算法评估水生植物净化污水能力  

The Fuzzy Membership Function Algorithm was Applied to Evaluate the Ability of Aquatic Plants to Purify Sewage

作　　者：叶选 张继红[2] 陈心韵 任琼[2] 贺义昌[2] 叶清[1] 郑育桃[2] YE Xuan;ZHANG Jihong;CHEN Xinyun;REN Qiong;HE Yichang;YE Qing;ZHENG Yutao(College of Forestry,Jiangxi Agricultural University,330045,Nanchang,PRC;Jiangxi Academy of Forestry,330032,Nanchang,PRC)

机构地区：[1]江西农业大学林学院,南昌330045 [2]江西省林业科学院,南昌330032

出　　处：《江西科学》2023年第3期449-454,457,共7页Jiangxi Science

基　　金：江西农业大学大学生创新创业训练计划项目(202210410152);2021年中央财政湿地保护与恢复补助项目(2021143)。

摘　　要：为筛选出适宜江西地区种植的对污水综合净化能力较强的水生植物,以萍蓬莲、黄丝草、黑藻、粉绿狐尾藻、睡莲、矮化苦草、竹叶眼子菜、水鳖、黄花水龙、荇菜、穗花狐尾藻共11种典型水生植物为研究对象,将水生植物进行统一移栽于模拟富营养化污水中培养。在植物生长的不同时间段内采集水样,并对水样中的总氮、总磷、氨氮和化学需氧量以及pH值5个指标进行监测,基于模糊隶属函数算法对不同水生植物净化污水能力进行综合评价。研究结果表明,11种水生植物均能对模拟富营养化污水起到净化作用,但净化效果存在很大差异。采用模糊隶属函数算法评估分析水生植物对污水的净化能力筛选出综合表现较优的5个水生植物品种依次为黄丝草、粉绿狐尾藻、黑藻、竹叶眼子菜、水鳖。以上结果可为江西污水的生态净化提供参考依据,也为水生植物筛选提供了新的综合评价方法。In order to screen out aquatic plants with strong comprehensive sewage purification ability suitable for planting in Jiangxi area,a total of eleven were used as pendantus,yellow silk grass,black algae,pink green foxtail,water lily,dwarf bitter grass,bamboo leaf eye vegetables,water turtle,yellow flower water dragon,wattle grass,and spike flower foxtail algae typical aquatic plants were studied as the research object,and aquatic plants were transplanted and cultivated in simulated eutrophication sewage.Water samples were collected during different periods of plant growth,and the five indicators of total nitrogen,total phosphorus,ammonia nitrogen,chemical oxygen demand and pH in the water samples were monitored,and the ability of different aquatic plants to purify sewage was comprehensively evaluated based on the fuzzy membership function algorithm.The results showed that eleven species of aquatic plants could purify simulated eutrophication sewage,but the purification effects were very different.The fuzzy membership function algorithm was used to evalu-ate and analyze the purification ability of aquatic plants to sewage,and five aquatic plant varieties with better comprehensive performance were selected as yellow silk grass,pink green foxtail,black algae,bamboo leaf eye and water turtle.The above results can provide a reference for the ecological purification of Jiangxi sewage,and also provide a new comprehensive evaluation method for aquatic plant screening.

关 键 词：隶属函数 富营养化 综合评价 生态净化 去除效果 

分 类 号：TU43[建筑科学—岩土工程] O344[建筑科学—土工工程]