Format

Send to

Choose Destination
J Environ Manage. 2016 Oct 1;181:261-268. doi: 10.1016/j.jenvman.2016.06.040. Epub 2016 Aug 5.

Remediation of aquaculture water in the estuarine wetlands using coal cinder-zeolite balls/reed wetland combination strategy.

Author information

1
College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China; Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, PR China. Electronic address: weijunas@ouc.edu.cn.
2
College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China.
3
Qingdao Water Group Co., Ltd., Qingdao 266000, PR China.
4
College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China; Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, PR China.

Abstract

In this paper, the modified coal cinders and zeolite powders in proportion of 2:1 were mixed with modified polyvinyl alcohol (PVA) with a ratio of 20:1 (w/v) to make a new sorbent and biological carrier-the coal cinder-zeolite balls (CCZBs). The maximum absorption capacities of ammonia nitrogen and Chemical Oxygen Demand (CODCr) on CCZBs, adsorption process were evaluated in batch experiments. And then they were combined with reed wetland for bioremediation of micro-polluted aquaculture water in estuarine wetlands. The results showed that the removal efficiencies of ammonia nitrogen and CODCr improved with the decrease in water inflow and increase in inflow concentrations. Efficiencies of 67.3% and 71.3% for ammonia nitrogen and CODCr under water flow of 10 L/h were obtained when their inflow concentrations were 1.77 and 56.0 mg/L respectively. This strategy can be served as a model system for bioremediation in situ of aquaculture water and other organic polluted or eutrophic water.

KEYWORDS:

Aquaculture water; Coal cinder-zeolite balls (CCZBs); Estuarine wetlands; Reed wetland; Remediation

PMID:
27372248
DOI:
10.1016/j.jenvman.2016.06.040
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center