|Alternative Title||STUDY ON THE SPACIAL-TEMPORAL VARIATION RULES OF POLLUTANTS AND REMEDIATION METHODS IN THE LUANHE RIVER BASIN|
|Place of Conferral||北京|
|Keyword||生态计量学 生态修复 Ppp模式 Ecological Stoichiometry Ecological Remediation Ppp|
|Other Abstract|| 滦河流域坐落于京津冀都市经济圈，流域地表水径流对首都北京和天津的饮用水供给保障起到十分重要的作用。然而近年来沿岸城镇农村污水和垃圾的处理的滞后，以及农业畜牧业的快速发展所带来的面源污染，对流域内河流水体造成持续危害，不仅威胁到下游一线城市的饮用水安全，也同时破坏了河流生态系统的健康性和完整性。因此，研究污染物的时空变化规律和提出相应的修复措施，对于下一步开展流域修复治理具有重要意义。|
本研究虽不能彻底解决环境治理技术与资本的矛盾困境，但希望能投石问路，抛砖引玉，为今后流域尺度范围的环境综合治理提供理论依据和决策参考。; The Luanhe River Basin is located in the Beijing Tianjin Hebei metropolitan economic circle. The watershed runoff of the basin plays a very important role in drinking water supply security in Beijing and Tianjin. In recent years, due to the low treatment rates of sewage water and solid waste in the villages and small towns along the river, and non-point pollution caused by the fast development of agriculture and animal husbandry, rive health in the basin was damaged. These pollutions not only threaten the downstream drinking water supply security, but also ruined the integral and health of river ecological system. It has important significance to study the special-temporal variation rules of pollutants and find out river remediation method.
The historical data from 2006 to 2012 were collected and analyzed in this study. Data in 2013 were investigated in the field by the author. Ecological stoichiometry method was used as an important study method to analyze the special-temporal variation rules of pollutants, build the relationships between water column and sediments. The results showed as follows:
(1) The degree of pollution in the mainstream was much heavier than the tributary. The best river water quality is Baohe River, while Yixunhe River was the worst in the basin rivers. The main pollutants is NH4+-N indicated that sewage water discharge and fertilizer usage were the main threaten to river water quality. Pollutants concentration in the monitoring station in the Yixunhe River were all exceeded the surface water class V standard. The best water quality monitoring location showed in Guojiatun monitoring station in the upstream of
Luanhe River. The midstream area is the start of water quality deterioration and should be focus on if treated.
(2) Pollutant concentrations within all kinds of surface water class standards were statistical significant. TN was increased by the class standards rise from I to V. This pollutant can be the best indicator for water class standards in the Luanhe River Basin.
(3) By using COD as a rule for stoichiometry, each stoichiometric result varied with water class variation irregularly. While TP was used, most pollutants stoichiometric results showed regularly. The best indicator is NOx--N:TP and the mean value of NOx--N:TP of water class standards from I to V were 233, 216, 111, 102, 52, respectively.
(4) The results of spearman correlation analysis showed N:P between water column and sediment were correlated significantly. This conclusion can be used for deducing the historical changes of river water quality by analyzing the river sediments.
The pollution factors, reasons and evaluation methods in the river ecosystems were summarized in this study. The common methods for river remediation were listed. Aeration method, biological remediation were used for increasing the DO in water. Sediment dredging was used for removing the endogenous pollution of rivers and lakes. Ecological floating bed method belongs to phytoremediation in nature. Based on the cause of pollution, 5 remediation methods were offered: point and non-point pollution control, sediment dredging in urban river, bank and the coastal buffer zone of ecological restoration, phytoremediation and landscape construction.
PPP(Public Private Partnerships) was used for business model. The central government and local financing as guide funds. This model likes Super fund in the USA, it rebuilt the current funds for environmental protection. The main purposes of PPP model have important meaning for changing the negative impression of environmental protection: large investment with little output. It is hoped that the results of this study can offer decision-making for the government in the Basin pollution treatment.
|崔经国. 滦河流域污染物时空变化规律及生态修复措施[D]. 北京. 中国科学院研究生院,2014.|
|Files in This Item:|
|滦河流域污染物时空变化规律及生态修复措施（5854KB）||开放获取||--||Application Full Text|
|Recommend this item|
|Export to Endnote|
|Similar articles in Google Scholar|
|Similar articles in Baidu academic|
|Similar articles in Bing Scholar|
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.