基于昆山地区的水葫芦问题解决方案研究

Study on the solution of water hyacinth problem based on Kunshan area

以昆山市为例简要阐述了水葫芦在生态环境及社会经济方面的危害,并以水葫芦的生长周期为主线,分别在早期、中期及后期不同介入时机上列举阐述了其具体解决措施。通过详细分析论证,筛选提出了适合昆山地区的综合性解决方案建议。同时,模拟了在昆山市急水港周庄段引入水葫芦产沼气项目,以净现值(NPV)法进行了经济可行性分析得出,当以现有能力打捞的全部水葫芦用于产沼气项目且社会贴现率为6%时,项目可在投入运营后6年内实现盈利,项目运营15年时可实现净现值178万元。

Taking Kunshan City as an example,the harm of water hyacinth in the ecological environment and socio economic aspects was briefly described.Taking the growth cycle of water hyacinth as the main line,the specific solutions were listed in the early,middle and late stages of different interventions.Through detailed analysis and demonstration,comprehensive solution proposal for Kunshan area was proposed.At the same time,water hyacinth producing biogas project in Zhouzhuang section of Jishui port in Kunshan City was simulated.The economic feasibility analysis based on the NPV method showed that when all the water hyacinths salvaged from existing capacity were used in biogas projects and the social discount rate was 6%,the project could be profitable within 6 years after it was put into operation,and it would achieve a net present value of 1.78 million yuan in 15 years of operation.