Affiliation:
1. College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
2. Centre for Research on the Ecological Security of Ports and Shipping, Shanghai Ocean University, Shanghai 201306, China
Abstract
Abstract
We employed a mesoscale experimental system and enriched natural plankton communities to investigate the efficacy of a type of ballast-water management system (BWMS) that uses a combination of filtration and electro-catalysis as the treatment technology. The water samples were collected immediately after treatment and at discharge to measure the biological efficiency of this BWMS. The main hydro chemical parameters, the TRO concentration and the plankton species composition before and after the ballast treatment process, were measured. After treatment, the concentration of TRO remained at a high level of 1.690 ± 0.573 (SD) mg/L. The biological efficacy of ballast water after treatment at holding times of 10 min, 20 min, 30 min, 40 min, and 50 min were measured. Holding time significantly impacted the biological efficacy. The discharged, treated water satisfied the D-2 standard of the International Maritime Organization (IMO) after 50 minutes of holding time.
Funder
National Key Research and Development Project
Shanghai Science and Technology Commission Scientific Research Project
Shanghai Port and Offshore Ecological Environment Technology Service Platform Project
high technology research program of ministry of industry and information technology
Subject
Water Science and Technology,Environmental Engineering
Cited by
3 articles.
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