尚湖原水pH异常原因分析及应对

Analysis and solution of abnormal PH in Shang Lake

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 find out the reasons of abnormal pH value of raw water in Shang lake, and to deal with them by proper measures. Methods： Based on the field investigation, the relation of pH value with climate, dissolved oxygen, total hardness, total alkalinity, the number of algae of Shang Lake during 2007 and 2008 were analyzed. Results： In the east areas of Shang Lake, the strong photosynthesis of multiplying submerged plants led raw water pH value to increase abnormally, and restrained the growth of algaes. Conclusion： The multiplying of submerged plants purified the raw water quality. In water plant, the raw water pH value was adjusted to normal level by adding hydrochloric acid, to make sure the safety of drinking water.