The flocculants including 15% cationic and 1% hydrophobic function monomer have the best purification water effect.
絮凝剂分子中含有15%的阳离子基团和1%左右的疏水基因则更有利于其净水效果的发挥。
The test result indicates that there is more diversity of purification water effect for granular activated carbon in different active carbon factories.
试验结果表明，不同活性炭厂家生产的颗粒状果壳活性炭对饮用水净化效果有较大差异。
Based in the laboratory building the small aquatic ecosystem, purification effect of the eutrophication water by aquatic plants is researched.
该文通过在实验室构建小型的水生生态系统，采用水培方法，研究水生植物对富营养化水质的净化效应。
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