Potential for nutrient removal by integrated remediation methods in a eutrophicated artificial lake - A case study in Dishui Lake, Lingang New City, China

Qiuzhuo Zhang*, Chi Ding, Varenyam Achal, Dan Shan, Yang Zhou, Yatong Xu, Wei Ning Xiang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A new integrated water remediation technology, including a floating bed, a buffer zone of floating plants, enclosed 'water hyacinth' purification, economic aquatic plants and near-shore aquatic plant purification, was used in Dishui Lake to improve its water quality. A channel of 1,000 m length and 30 m width was selected to implement pilot-scale experiments both in the static period and the continuous water diversion period. The results showed that the new integrated water remediation technology exhibited the highest removal rate for permanganate index in a static period, which achieved 40.6%. The average removal rates of total nitrogen (TN), ammonia nitrogen (NH3-N) and total phosphorus (TP) in a static period were 23.2, 21.6 and 19.1%, respectively. However, it did not exhibit an excellent removal rate for pollutants in the continuous water diversion period. The average removal rates for all pollutants were below 10%. In winter, the new integrated remediation technology showed efficient effects compared to others. The average removal rate for CODMn, TN, NH3-N and TP were 7, 5.3, 7.6 and 6.5%, respectively. Based on our results, the new integrated water remediation technology was highly efficient as a purification system, especially during the static period in winter.

Original languageEnglish
Pages (from-to)2031-2039
Number of pages9
JournalWater Science and Technology
Volume70
Issue number12
DOIs
StatePublished - 2014
Externally publishedYes

Keywords

  • Eutrophication
  • Floating bed
  • Integrated remediation
  • Nutrient removal
  • Seasonal effects
  • Submerged plants

Fingerprint Dive into the research topics of 'Potential for nutrient removal by integrated remediation methods in a eutrophicated artificial lake - A case study in Dishui Lake, Lingang New City, China'. Together they form a unique fingerprint.

Cite this