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Effects of polyaluminum chloride and copper sulfate on phosphorus and UV254 under different anoxic levels
Wu, YH; Feng, MY; Liu, JT; Zhao, Y; Liu, JT, Chinese Acad Sci, Inst Hydrobiol, 7 S Rd Donghu Lake, Wuhan 430072, Peoples R China
2005
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume14Issue:5Pages:406-412
AbstractExperimental sediments and water from shallow, eutrophic Dianchi Lakes were treated in a controlled laboratory microcosm using different chemicals under different anoxic levels. This study revealed that the polyaluminum chloride (PAC) was able to inhibit the phosphorus release and decrease the UV254 value at any anoxic level. When the DO concentrations were between 0.76-0.95 mg(.) L-1, the UV(254)value, total phosphorus (TP), and total dissolved phosphorus (TDP) in the water column were decreased by 71.93%, 87.12% and 64.24% respectively. The UV254, TP, and TDP were also decreased by 72.94%, 70.87% and 50.76% respectively at the levels of 4.56-5.32mg(.)L(-1) of DO concentrations. The treatment effects of TP and TDP in the water column using copper sulfate however were not as efficient as the PAC treatment. The UV254 value was increased with the addition of copper sulfate at every anoxic level tested but the chlorophyll-a (Chl-a) content was decreased rapidly and efficiently by copper sulfate more than the treatment by PAC. When the DO concentrations were 0.76-0.86mg(.)L(-1) and 4.75-5.14mg(.)L(-1), the Chl-a concentrations were decreased by 84.87% and 75.07% respectively through copper sulfate treatment. With additions of PAC and copper sulfate, the phosphorus fractions in sediments were shifted forward to the favorable shapes that have little ability of release. The TP concentrations in sediments were increased after treatment via PAC and copper sulfate. Under anoxic conditions, most of the BD-P (Fe-P) to NaOH-P (Al-P) was converted using the recommended PAC dose in BD-P rich sediment. Similar to the PAC, the copper sulfate also could flocculate the exchange phosphorus from sediment to overlying water. Overall though, the effects of copper sulfate treatment were not better than that of the PAC.; Experimental sediments and water from shallow, eutrophic Dianchi Lakes were treated in a controlled laboratory microcosm using different chemicals under different anoxic levels. This study revealed that the polyaluminum chloride (PAC) was able to inhibit the phosphorus release and decrease the UV254 value at any anoxic level. When the DO concentrations were between 0.76-0.95 mg(.) L-1, the UV(254)value, total phosphorus (TP), and total dissolved phosphorus (TDP) in the water column were decreased by 71.93%, 87.12% and 64.24% respectively. The UV254, TP, and TDP were also decreased by 72.94%, 70.87% and 50.76% respectively at the levels of 4.56-5.32mg(.)L(-1) of DO concentrations. The treatment effects of TP and TDP in the water column using copper sulfate however were not as efficient as the PAC treatment. The UV254 value was increased with the addition of copper sulfate at every anoxic level tested but the chlorophyll-a (Chl-a) content was decreased rapidly and efficiently by copper sulfate more than the treatment by PAC. When the DO concentrations were 0.76-0.86mg(.)L(-1) and 4.75-5.14mg(.)L(-1), the Chl-a concentrations were decreased by 84.87% and 75.07% respectively through copper sulfate treatment. With additions of PAC and copper sulfate, the phosphorus fractions in sediments were shifted forward to the favorable shapes that have little ability of release. The TP concentrations in sediments were increased after treatment via PAC and copper sulfate. Under anoxic conditions, most of the BD-P (Fe-P) to NaOH-P (Al-P) was converted using the recommended PAC dose in BD-P rich sediment. Similar to the PAC, the copper sulfate also could flocculate the exchange phosphorus from sediment to overlying water. Overall though, the effects of copper sulfate treatment were not better than that of the PAC.
SubtypeArticle
KeywordPolyaluminum Chloride (Pac) Copper Sulfate Anoxic Uv254 P-fraction Dianchi Lake
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Cent China Normal Univ, Sch Life Sci, Wuhan 430079, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 10093, Peoples R China
Subject AreaEnvironmental Sciences
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000229458600011
WOS KeywordLAKE-SEDIMENTS ; REMOVAL ; COAGULATION ; DIAGENESIS ; PHOSPHATE ; GERMANY ; SHALLOW
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9254
Collection期刊论文
Corresponding AuthorLiu, JT, Chinese Acad Sci, Inst Hydrobiol, 7 S Rd Donghu Lake, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Cent China Normal Univ, Sch Life Sci, Wuhan 430079, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 10093, Peoples R China
Recommended Citation
GB/T 7714
Wu, YH,Feng, MY,Liu, JT,et al. Effects of polyaluminum chloride and copper sulfate on phosphorus and UV254 under different anoxic levels[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2005,14(5):406-412.
APA Wu, YH,Feng, MY,Liu, JT,Zhao, Y,&Liu, JT, Chinese Acad Sci, Inst Hydrobiol, 7 S Rd Donghu Lake, Wuhan 430072, Peoples R China.(2005).Effects of polyaluminum chloride and copper sulfate on phosphorus and UV254 under different anoxic levels.FRESENIUS ENVIRONMENTAL BULLETIN,14(5),406-412.
MLA Wu, YH,et al."Effects of polyaluminum chloride and copper sulfate on phosphorus and UV254 under different anoxic levels".FRESENIUS ENVIRONMENTAL BULLETIN 14.5(2005):406-412.
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