David G. Wareham
University of Canterbury
51 Papers
384 Citations
David G. Wareham is an academic researcher from University of Canterbury. The author has contributed to research in topics: Sequencing batch reactor & Denitrification. The author has an hindex of 16, co-authored 51 publications. Previous affiliations of David G. Wareham include Hong Kong University of Science and Technology & University of Auckland.
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Papers
Use of volatile fatty acids from an acid-phase digester for denitrification.
TL;DR: It appears that denitrifying bacteria have a sequential preference for VFAs over other more complex soluble organic carbon forms, including nitrate-Nitrogen concentrations in the range of 20 to 200 mg/L.
256
COD, ammonia and dissolved oxygen time profiles in the simultaneous nitrification/denitrification process
J. B. Holman,David G. Wareham +1 more
TL;DR: In this article, the authors examine the time courses of COD, NH3 N and DO during the simultaneous nitrification/denitrification (SND) process, with particular reference to the question of whether SND is a physical or microbiological phenomena.
154
Utilization patterns of volatile fatty acids in the denitrification reaction
P. Elefsiniotis,David G. Wareham +1 more
TL;DR: In this article, both synthetically produced and naturally generated VFAs were considered with the synthetic compounds being acetate, propionate, butyrate and a mixture of these acids.
151
Effects of hydraulic and solids retention times on productivity and settleability of microbial (microalgal-bacterial) biomass grown on primary treated wastewater as a biofuel feedstock.
TL;DR: To produce naturally settleable biomass, combined growth of native microalgae and bacteria was facilitated in laboratory sequencing batch reactors (SBRs) using primary treated wastewater from the Christchurch Wastewater Treatment Plant in New Zealand to generate methane based on settleable mixture productivity.
109
Real-time control of aerobic-anoxic sludge digestion using orp
TL;DR: In this article, the use of ORP to control two lab-scale aerobic-anoxic sludge digesters was evaluated using a sequencing batch-reconstruction approach, where one was operated in a real-time manner with 3 h of air-on and air-off time determined by computer detection of the breakpoint in the orp-time profile.
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