Toxic Effect of Heavy Metal in Leaching Solution of Fly Ash from Solid Waste Combustion to Alga
Scenedesmus obliquus, Selenastrum bibraianum and Scenedesmus quadricauda were chosen as biological indicators to test the toxicity of three MSW FAL samples inhibiting the growing of alga by the static water acute toxic test. The results show: under the condition of pH at 5 and at 8, acute toxicity of the same sample was similar. For the same alga, toxicity of the samples were ranked as: MSW FALⅠMSW FALⅢMSW FALⅡ. For different alga, the sensitivity to the same sample was ranked as: Selenastrum bibraianum Scenedesmus quadricauda Scenedesmus obliquus. The toxic mechanism of each sample was analyzed respectively.