跪求英语达人翻译

2025-02-19 14:51:46

推荐回答（3个）

回答1：

Objective: the chrome pollution from soil were high Cr (Ⅵ separation sulfate-reducing bacteria) to repair chrome pollution of soil.
Methods: using microorganism separation, purification technology from Cr (Ⅵ) contaminated soils were native chromium reduction fungi, Domestication and cultivation expand sulfate-reducing bacteria, By single factor experiment on chrome pollution repair soil sample, Use diphenyl carbon acyl 2 hydrazine spectrophotometry in the soil sample hexavalent chromium reductive circumstance, The reduction in soil samples analyzed form chromium.
Results show that the selected two Cr (Ⅵ), a reduction of fungi QingMeiJun Penicillium (for), a hairy mould Mucor (.). In the single factor experiment, 32 degrees, the best reduction reduction rate reached 67.74%; Sulfate-reducing bacteria by 3% reasonable dosage and its reduction rate for 62.37%, When the pH value for the best effect, while 5.2 hexavalent chromium reduction rate reached 69.89%, With more than 3 fungi, bacteria for the best effect, reduction rate reduction for 66.67%, The original sulfate-reducing bacteria with soil water drop the normal cr 68.09%, The soil can exchange the original configuration chromium dropped 66.67%, And crystallization precipitation state and amorphous precipitation state chromium chrome content decreased 30.77%, 25%.

回答2：

Objective: chromium contaminated soil from the isolated, high Cr (Ⅵ)-reducing bacteria to fix chromium contaminated soil.
Methods: Isolation and purification of microorganisms from the Cr (Ⅵ) to screen out contaminated soil fungi indigenous chromium reduction; domestication and expansion of culture-reducing bacteria; single factor test, repair of chromium contaminated soil samples; with diphenyl hydrazine spectrophotometric Determination of hexavalent chromium in soil samples to restore the situation; on the reduction of soil samples before and after analysis of various forms of chromium.
The results show that the selected two Cr (Ⅵ) reduction of fungi, one for the Penicillium (Penicillium), way for the fungus (Mucor). In the single-factor test, 32 ℃ when the reduction of the best, the reduction rate of 67.74%; reducing bacteria, a more reasonable amount, 3%, the reduction rate of 62.37%; when the pH value of 5.2, the best, hexavalent chromium reduction rate of 69.89%; fungi and bacteria ratio of 3:2, the best reduction, reduction rate was 66.67%; by reducing bacteria in soil treated with raw water soluble chromium decreased 68.09%; soil exchangeable chromium decreased Original 66.67%; while the precipitation of chromium and amorphous states of chromium precipitation state decreased by 30.77%, 25%.

回答3：

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