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目的:调查研究尚湖原水pH异常原因,采取相应的措施予以应对。方法:分析2007年-2008年期间尚湖原水pH值与气候、溶解氧、总硬度、总碱度以及藻类之间关系,并结合现场调查。结果:尚湖东部水域沉水植物大量繁殖,强烈的光合作用导致取水口原水pH值异常升高,并抑制了藻类的生长。结论:沉水植物大量繁殖有利于净化原水水质,在水厂投加盐酸可以将原水pH调节到适当的范围,确保饮用水安全。
Objective: To investigate the cause of abnormal pH of Shanghu raw water and take corresponding measures to deal with it. Methods: The relationship between pH and the climate, dissolved oxygen, total hardness, total alkalinity and algae in Shanghu lake water during 2007-2008 was analyzed. Results: Submerged macrophytes proliferated in the east of Shangshang Lake. The strong photosynthesis led to an abnormal increase of the pH value of raw water at the water intakes and inhibited the growth of algae. Conclusion: The flooding of submerged macrophytes is beneficial to the purification of raw water quality. Hydrochloric acid can be added into the waterworks to adjust the pH of the raw water to an appropriate range to ensure drinking water safety.