On the basis of classification of geographical properties a rolling development goal programming model is formulated in correspondence with the ecopattern group in Four-Lake Area.
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Dehydrated ammonium carnallite was synthesized with bischofite from salt lake and ammonium chloride solution in a 1:1 molar ratio of MgCl2:NH4Cl, dehydrated at 160°C for about 4 h.
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Synthesis of hydrophobic association cationic starch and its flocculation application on containing algae water of Dianchi Lake
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Water with algae from Dianchi Lake was tested with PSOAMDA.
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It had been found from the flocculation of disposed water with algae from Dianchi Lake that the transparency and COD elimination reach to 93.5% and 70.3%, respectively, with 15 mg/L PSOAMDA and at pH 6, vs.
The Eastern Route have been proposed for trans-ferring water from the Chang Jiang to the Tianjin.The Route would use the ancient Grand Canal to transfer water from the Jiangdu Pumping Station in the lower reaches of the Chang Jiang, The Eastern Route of water transfer from Southern would pass through three basin of Huaihe, Huanghe and Haihe. The water would be also pumped to pass through four large lakes, namely,the Hongze, Luoma, Nansi and Dongping.The water pollution of rivers and lakes are ve...
This paper analyses deterioration of ecological environment inthe Talimu River valley and the Bositeng Lake watersystem of SouthXinjiaag, proposes a new concept, the retrogressive deteriorationof ecological environment in the lower reaches of inland river, andpoints out that mankind develops and uses water and soil resourcesunreasonably are main reasons of leading to deterioration of ecologi-calenvironment. Finally, some suggestions, to plan watersystem, developgroundwater resources, protect and resum...
In the early 1970's guided by the policy of "Grain must be taken as the key link in agriculture", people in Hubei and some other provinces in China started a "land reclaimed from lake" upsurge, which however incurred some knotty problems in the reclaimed areas. Ecological and economic cost-benefit analyses are made in this paper based on the data obtained from the reclaimed lake regions. It is concluded that land-reclamation should be regarded as a kind of disadvantageous action because of its a...