| Autor: |
Wei, Zhang, Bang, Xiong, Kuang-Fei, Lin, Hai-Fang, Li, Mei-Jin, Guo, Xin-Hong, Cui, Bin, Wang |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Ying yong sheng tai xue bao = The journal of applied ecology. 23(6) |
| ISSN: |
1001-9332 |
| Popis: |
A laboratory simulation experiment was conducted to study the release of sediment phosphorous and nitrogen under the effects of coating the sediment with plastic, clinoptilolite, calcite, quartz sand, and calcium nitrate, aimed to provide scientific basis and technical support to control the sediment nutrient release under the background of water environment pollution by different concentrations of nitrogen and phosphorus. The control efficacy of test coating materials for sediment total phosphorous release was in the order of plasticcalcium nitrateclinoptilolitecalcitequartz sand, and that for sediment total nitrogen release was in the order of clinoptiloliteplasticcalcitequartz sandcalcium nitrate. As for the release of sediment NO(3-)-N, the control efficacy of test coating materials was calcium nitratequartz sandclinoptilolitecalciteplastic coating; whereas for the release of sediment NH(4+)-N, the sequence was calcium nitrateplastic coatingclinoptilolitecalcitequartz sand. Water temperature had definite relativity to the sediment nutrient release. With the increase of water temperature, the concentrations of water total phosphorous and nitrogen and NO(3-)-N increased, while the concentration of water NH(4+)-N presented a declining trend. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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