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Evaluation of the Multichambered Treatment Train, a Retrofit Water‐Quality Management Practice
Author(s) -
Greb Steven R.,
Bannerman Roger T.
Publication year - 2000
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143000x137365
Subject(s) - total suspended solids , total dissolved solids , suspended solids , effluent , water quality , environmental science , particulates , phosphorus , environmental engineering , water treatment , volatile suspended solids , environmental chemistry , chemistry , sewage treatment , wastewater , ecology , chemical oxygen demand , organic chemistry , biology
This study evaluated the water‐quality benefits of a new urban best management practice design called the multichambered treatment train (MCTT). The study consisted of collecting flow‐weighted water‐quality samples at influent and effluent locations for 15 consecutive storms. Device efficiencies were based on load reductions of 68 constituents. Total rainfall amounts for the 15 storms ranged from 0.45 to 3.48 cm, yielding 1.7 to 8.9 m 3 of water treated by the device. None of these storms surcharged the unit. High reduction efficiencies were found for all particulate‐associated constituents, such as total suspended solids (98%), total phosphorus (88%), and total recoverable zinc (91%). Dissolved fractions had substantial but somewhat lesser removal rates (dissolved phosphorus, 78%; dissolved zinc, 68%). Total dissolved solids, which originated from road salt storage, yielded 4 times the total suspended solids load. No appreciable shift was seen between influent and effluent particle size distributions.