1, the water quality of Suzhou River is good-the industrial base of China is weak, and the modern national industry has just started; The economic aggression of foreign capitalism against China is mainly commodity export, and the number of foreign-funded factories in China is also very small; Shanghai's urban population has not surged.
2. The water quality of the Thames is poor-after the industrial revolution, the modern industry in Britain developed rapidly, polluting the water flow; The industrial revolution has accelerated the process of urbanization, the scale of cities has expanded, the population has increased, and domestic sewage has aggravated river pollution.
Related materials:
Material 1
1870 the Ministry of industry and information technology of Shanghai concession sampled the water near Shanghai and sent it back to Britain for expert testing. Results The water quality of 12 water intake, including Suzhou River, was obviously better than that of Thames River in the same period. Since the 20th century, the population of Shanghai has increased rapidly year by year, and the water pollution of Suzhou River has become increasingly serious. 1925, Shanghai Zhabei water plant with Suzhou River as its water source was forced to close.
The local government has organized dredging for many times to improve the self-purification ability of Suzhou River. Some commercial organizations have set up a special management organization, Wusongjiang Water Conservancy Association, to actively cooperate with the official departments to dredge Suzhou River. However, due to funds and other reasons, the river dredging work is intermittent and the progress is slow.
From 1924 to 1926, three sewage treatment plants were built in Shanghai to treat domestic sewage, and individual penalties were also imposed on industrial sewage. But until 1949, before the liberation of Shanghai, there was no special sewage management and control institution in Shanghai. In addition, the Shanghai government and the concession are fragmented, and the sewage treatment of Suzhou River has no obvious effect.
Material 2
With the development of industrial revolution, many factories appeared along the Thames and its tributaries. /kloc-In the middle of the 0/9th century, the Thames began to give off an unbearable stench. Facing the deteriorating Thames environment, the London municipal government has built a domestic sewage discharge system. Non-governmental organizations such as the British National Association for the Advancement of Social Sciences and the Royal Society of Arts have repeatedly discussed the issue of river management and urged the government to intervene in river pollution.
1876, the British Parliament formally passed the Law on the Prevention and Control of River Pollution, which explicitly prohibited the direct discharge of wastes and untreated industrial wastewater into rivers. However, local governments are dissatisfied with the excessive intervention of the state, and some factory owners also strongly oppose it. Although people want to improve the environment, they are hesitant about river management because they are worried that it will lead to government tax increase. Therefore, the environment of the Thames has not been improved.