引入生态修复技术的太湖流域生态补偿方案

针对生物膜法、活性污泥法等适用于点源污染治理的技术无法有效解决面源污染的问题,引入生态修复技术,选取美人蕉作为修复植物,构建了太湖流域污染治理生态补偿模型。并以2005年太湖流域COD削减为例进行分析,结果显示:通过生态补偿方案激励太湖流域苏浙沪各地区合作治污可降低流域治理成本约5%,引入生态修复技术可进一步降低合作治污成本约12%;引入生态修复技术后,为促进苏浙沪各地区合作治污,提升整个流域的治理效率,应建立流域地区间生态补偿机制,太湖流域实证研究确定了地区之间的补偿标准:浙江省对江苏省、上海市的COD生态补偿价格为6648.30元/吨、8164.21元/吨。

Compensation Scheme of Taihu Basin by Introducing Ecological Restoration

Sewage disposal technologies,such as biofilm process and activated sludge technology,which apply to point source pollution,can not be adopted for area pollution.In order to solve this problem,ecological restoration technology is introduced in treatment.Then a collaboration model of ecological compensation in Taihu Basin is formulated after choosing Canna generalis as aquatic plant species for ecological restoration.The analysis of the data of COD in 2005 indicates that ecological compensation scheme,which promotes cooperation between Jiangsu,Zhejiang and Shanghai,can contribute to reducing the treatment cost by nearly 5%.The cost can further drop by nearly 12% with introducing ecological restoration technology.Besides,the compensation criterion should be set up to achieve the collaboration and gain the efficiency in pollution control.And the empirical analysis in Taihu Basin gives compensation standards between the three regions.The compensation price paid by Zhejiang to Jiangsu and Shanghai is 6648.30 and 8164.21 yuan per ton respectively.