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The process technology of “oxidation+chemical precipitation+coagulating sedimentation and heavy metal collector” is proposed through studying the treatment technology of thallium-containing desulfurization waste water as well as the optimal proportion meeting the requirements of removing thallium is determined by adjusting the concentration (set value) of oxidant (sodium hypochlorite), pH, polyaluminum chloride (PAC), heavy metal collector and polyacrylamide (PAM). The experimental results showed that the removal efficiency of thallium was 99.75% when the concentrations of oxidant (sodium hypochlorite), PAC, heavy metal collector and PAM were 1 500 mg/L, 200 mg/L, 1 300 mg/L, 4 mg/L respectively and pH value was 10, which could meet the requirements of discharge standard for thallium in desulfurization waste water.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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