苏州东北街河水体生态修复试验效果研究

发布时间：2018-04-20 15:22

本文选题：透明度 + 生态修复　；参考：《苏州科技大学》2017年硕士论文

【摘要】：苏州城区从2011年起,通过断头浜打通、干河清淤、控源截污、自流活水、石湖水质提升工程等一系列动作,通过三年的努力,城区水质有了显著改善,解决了水畅、水动、水活的问题。但是水体透明度、水体环境感官仍与市民百姓的期望有较大差距。为进一步提升城区河道水质,恢复“小桥流水”的古城水巷风貌,实现“水清、水美”的目标。通过赴杭州、昆山等地考察,选取上海太和水环境科技发展有限公司的“食藻虫引导水体生态系统构建技术”在苏州古城区东北街河进行生态试验,试验周期从2014年12月至2015年7月。本文以东北街河水体生态修复试验整个过程为研究对象,选取2014年12月至2016年7月的水质监测数据,以水体透明度作为作为水清主要评价因子,综合分析苏州东北街河区域的自然地理和水体现状,分析该河道存在的问题,并结合相关问题提出食藻虫控藻修复方案,论述食藻虫控藻修复方案的设计思路、理念、原则、依据,并在前期工程、水体曝气、沉水植物、食藻虫、水生动物菌落、生态平衡几个层面,细化目标,落实具体的执行方案。通过对照组试验的方式对其进行数据分析,分析食藻虫控藻修复对河道的透明度、水质的改变。通过大量的实验证明,在苏州东北街河水体生态修复中应用食藻虫控藻修复可有效的提升透明度,但在氨氮、总磷、总氮中并没有良好的改善作用。通过对实验影响因素的分析,了解到要想该实验获得成功,需要满足河床适合、光照适合、水流量不大、污染物不多的要求,唯有满足以上四条,才能进行食藻虫控藻修复方案的复制和推广,否则需要按照当地的实际情况,进行客观分析、重新设计方案。研究食藻虫控藻修复方案在东北街河水体生态修复的有效性,为河道水生态修复积累经验,以期推动苏州市食藻虫控藻修复方案的实施。
[Abstract]:Since 2011, the urban area of Suzhou has made a series of movements through breaking the head and creek, clearing up the silt in the dry river, controlling the pollution of the source, flowing water and improving the quality of the water quality of the Stone Lake. Through three years' efforts, the water quality of the city has been greatly improved and the problems of water flow, water movement and water are solved. However, the water transparency and the sense of water environment are still larger than the expectations of the citizens. In order to further improve the water quality of the urban waterways, restore the ancient city waterway features of the "small bridge water", achieve the goal of "water clear, water beauty". Through the visit to Hangzhou, Kunshan and other places, the "algae feeding ecological system construction technology" of the Shanghai Taihe water environment science and Technology Development Co., Ltd. is selected in the Northeast Street River of the ancient city of Suzhou. The ecological experiment was carried out from December 2014 to July 2015. In this paper, the whole process of the ecological restoration test of the river body in Northeast street was studied. The water quality monitoring data from December 2014 to July 2016 were selected and the water transparency was used as the main evaluation factor for the water quality. The natural geography and water of the Northeast Street River area of Suzhou were comprehensively analyzed. To analyze the existing problems of the river, and to put forward the remediation scheme of alga controlled algae by combining related problems, and discuss the design ideas, ideas, principles and basis of the phyto control scheme for algae feeding and algae control, and to implement specific implementation in the previous project, water aeration, submerged plants, algae feeding, aquatic animal colonies and ecological balance. Through a large number of experiments, it is proved that algae control can effectively improve the transparency of algae control in the river body ecological restoration of Suzhou northeastern street, but there is no good in ammonia nitrogen, total phosphorus and total nitrogen. Through the analysis of the influence factors of the experiment, we know that the success of the experiment is to meet the requirements of the suitable river bed, the light fit, the low flow of water, and the few pollutants. Only by satisfying the above four, can the algae control algae control scheme be replicated and popularized, otherwise it should be carried out according to the actual situation of the local area. In order to promote the implementation of the algae controlled algae control scheme in Suzhou, the effectiveness of the algae - controlled algae - controlled restoration scheme on the ecological restoration of river water in northeastern street was studied.

【学位授予单位】：苏州科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：X171.4

【参考文献】