过氧化氢与硫酸铜组合强化处理高藻景观水效果研究

过氧化氢与硫酸铜组合强化处理高藻景观水效果研究*

朱佳1汪小雄1陶益2张锡辉3雷中凯2

（1.深圳职业技术学院城市水良性循环利用工程开发中心，广东深圳518055；

2．清华大学深圳研究生院环境工程与管理研究中心，广东深圳518055；3.湖南大学土木工程学院，长沙410082）

摘要：以深圳市发生水华的某景观湖水为研究对象，研究过氧化氢（H

2O

2

）与硫酸铜（以Cu2+计）组合投加对水样

藻类生物量的控制效果及对水样溶解氧、pH、浊度的影响。结果表明：组合投药能显著抑制藻类生长，在处理第7天，组合投药A组（20mg/L H2O2+0.2mg/L Cu2+）、B组（10mg/L H2O2+0.4mg/L Cu2+）、C组（5mg/L H2O2+ 0.8mg/L Cu2+）的Chl a浓度分别降至对照组的58%、30%、18%。投加过氧化氢有助于增强硫酸铜的抑藻效果，A组Chl a浓度在第1天降至49μg/L，显著低于单独投加0.2mg/L Cu2+的处理组（81μg/L）。投加过氧化氢有助于降低Cu2+投加量，B组抑藻效果与单独投加0.6mg/L Cu2+处理组第7天数值相同。组合投药使水样溶解氧、pH 值、浊度均显著变化，第7天时，溶解氧由17.5mg/L降至8.7 13.3mg/L，pH值由10.0降至8.5 9.2，浊度由200NTU降至84 94NTU。

关键词：景观水；藻生物量；过氧化氢；硫酸铜

DOI：10.13205/j．hjgc．201408010

EFFECTS OF H

2O

2

AND CuSO

4

ON ENHANCED SUPPＲESSING ALGAL BIOMASS OF

A LANDSCAPE LAKE

Zhu Jia1Wang Xiaoxiong1Tao Yi2Zhang Xihui3Lei Zhongkai2

（1.Urban Water Benign Cycle EngineeringＲesearch and Development Center，Shenzhen Polytechnic，Shenzhen518055，China 2．Ｒesearch Center for Environment Engineering and Management，Graduate School at Shenzhen，Tsinghua University，Shenzhen518055，China；3.College of Civil Engineering，Hunan University，Changsha410082，China）

Abstract：The effects of hydrogen peroxide（H

2O

2

）and copper sulfate（Cu2+）on suppressing algal biomass of the water

samples taken from a landscape lake at Shenzhen with algal bloom as well as the variations of dissolved oxygen（DO），pH and

turbidity of the water samples were investigated．The results show that combined adding H

2O

2

and Cu2+significantly

suppressed algal biomass．The Chl a concentrations of group A（adding20mg/L H

2O

2

+0.2mg/L Cu2+），group B（adding

10mg/L H

2O

2

+0.4mg/L Cu2+）and group C（adding5mg/L H

2

O

2

+0.8mg/L Cu2+）were reduced to58%，30%and

18%of the control level on the7th day after the addition of H

2O

2

and Cu2+．The results indicated that adding H

2

O

2

remarkably enhanced the suppression effects of Cu2+on algal biomass as the Chl a concentration of group A on the1st day was rapidly reduced to49μg/L，much lower than that of just adding0.2mg/L Cu2+（81μg/L）．The Chl a concentration of

group B on the7th day was the same as that of just adding0.6mg/L Cu2+，suggesting the addition of H

2O

2

may reduce the

Cu2+dose required for algal biomass suppression．The addition of H

2O

2

and Cu2+led to significant variations in pH（from the

control level10.0to8.5 9.2on the7th day），turbidity（from the control level200NTU to84 94NTU on the7th day）and DO（from the control level17.5mg/L to8.7 13.3mg/L on the7th day）．

Keywords：landscape water；algal biomass；hydrogen peroxide；copper sulfate

*国家公益性行业环保科研专项（21209009）；国家公益性行业水利科研专项（21301047）；深圳技术研究开发项目（CXZZ20120618094712259）。收稿日期：2014－01－01