水生植物搭配种植削减入河地表径流中重金属的方法

• Format: Patent
• Language: Chinese
• Published: 04.01.2017
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

本发明提供种水生植物搭配种植削减入河地表径流中重金属的方法，属于重金属污染河道修复技术领域。该方法从河岸向河中央种植挺水植物菖蒲、芦苇，沉水植物小眼子菜、黑藻、菹草、狐尾藻，浮水植物凤眼莲。其中挺水植物种植密度为10～20株/m，菖蒲与芦苇种植比例为1:1～3；沉水植物种植密度30～50丛/m，小眼子菜、黑藻、菹草、狐尾藻的比例为1:1～2:3～5:1～2；浮水植物凤眼莲的种植密度10～20株/m。利用植物的生长过程，吸收富集水中的重金属离子，从而达到修复入河多种重金属复合污染河道的目的。该方法具有二次污染小，维修简单，成本小等优点，并且可以维持水中生态系统的平衡。利用该方法治理污染河道不仅具有环境价值、生态价值同时具有美观价值。 The invention provides a method for reducing heavy metals in river-going overland runoff by aquatic plant matched growth, belonging to the technical field of heavy-metal-polluted river course restoration. According to the method, emerging plants calamus and reed, submerged plants Potamogeton pusillus, hydrilla, curly pondweed and watermilfoil, and floating plant common waaterrthacinth are grown from the riverbank to the river center. The growth density of the emerging plants is 10-20 plants/m , and the growth proportion of the calamus and reed is 1:(1-3); the growth density of the submerged plants is 30-50 clumps/m , and the growth proportion of the Potamogeton pusillus, hydrilla, curly pondweed