Results 11 to 20 of about 9,570,884 (292)

Microalgae to energy: biomass recovery and pre-treatments optimisation for biogas production integrated with wastewater nutrients removal [PDF]

open access: yes, 2014
The increasing concern about water quality and energy demand promotes the development of innovative and low-cost processes to improve the nutrient uptake and energy efficiency of existing wastewater treatments (WWT).
Ometto, Francesco
core   +7 more sources

Using the activated sludge model 2d (ASM2d) to understand and predict the phosphorus accumulating organisms mechanism in enhanced biological phosphorus removal in relation to disintegrated sludge as a carbon source [PDF]

open access: yes, 2012
Carbon sources are considered as one of the most important factors in the performance of enhanced biological phosphorus removal (EBPR). Disintegrated sludge (DS) can act as carbon source to increase the efficiency of EBPR.
Boontian, Nittaya
core   +7 more sources

Mechanical sludge disintegration for the production of carbon source for biological nutrient removal. [PDF]

open access: yes, 2007
The primary driver for a successful biological nutrient removal is the availability of suitable carbon source, mainly in the form of volatile fatty acids (VFA). Several methods have been examined to increase the amount of VFAs in wastewater.
Ledoux, Sandrine   +6 more
core   +1 more source

Effect of influent nutrient ratios and hydraulic retention time (HRT) on simultaneous phosphorus and nitrogen removal in a two-sludge sequencing batch reactor process [PDF]

open access: yes, 2009
A laboratory-scale anaerobic–anoxic/nitrification sequencing batch reactor (A2N- SBR) fed with domestic wastewater was operated to examine the effect of varying ratios of influent COD/P, COD/TN and TN/P on the nutrient removal.
Stephenson, Tom   +2 more
core   +1 more source

Nutrient removal from wastewaters using high performance materials

open access: yesWater Science and Technology, 2003
Return side streams from anaerobic digesters and dewatering facilities at wastewater treatment plants (WWTPs) contribute a significant proportion of the total nitrogen load on a mainstream process. Similarly, significant phosphate loads are also recirculated in biological nutrient removal (BNR) wastewater treatment plants.
MacKinnon, Ian   +4 more
openaire   +2 more sources

Preliminary Design of Nutrient Removal Basins in the Fisheating Creek Watershed in Florida, USA Subject to Drought Conditions and Low Water Availability

open access: yesProceedings, 2018
The Fisheating Creek watershed located in Florida, United States of America (USA) is the focus of intense efforts to reduce nutrient transport into Lake Okeechobee which is located downstream. Public agencies and private land owners proposed constructing
Christopher Brown
doaj   +1 more source

Comparative performance of activated sludge and aerobic granular sludge sequencing batch reactors for removing metalloid SeIV/VI oxyanions

open access: yesJournal of Hazardous Materials Letters, 2021
Biotransformation of soluble selenite (SeIV) and selenate (SeVI) to biomass-associated Se0 (Bio-Se) provides a solution for mitigating Se pollution coupled to securing scarce element.
M. Sarvajith, Y.V. Nancharaiah
doaj   +1 more source

Kinetics of nutrient removal in an on-site domestic wastewater treatment facility

open access: yesMATEC Web of Conferences, 2018
Domestic wastewater from office building has not been maintained well especially in the areas where the sewerage system is unavailable. The aims of this research were to investigate the performance and kinetics of nutrient removal in an on-site domestic ...
Vandith Va   +4 more
doaj   +1 more source

Improper Maintenance Activities Alter Benefits of Urban Stormwater Treatment in a Temperate Constructed Wetland in NSW, Australia

open access: yesFrontiers in Environmental Chemistry, 2022
Constructed wetlands (CWs) are an effective means to treat nutrient and sediment pollution in urban stormwater runoff to minimise impact on receiving waterways. Maintenance of devices is recognised as a major contributing factor to performance.
Aaron S. Wright   +4 more
doaj   +1 more source

Nutrient removal in a constructed wetland treating aquaculture effluent at short hydraulic retention time

open access: yesAquaculture Environment Interactions, 2018
We examined the longitudinal and seasonal removal of dissolved and particulate nutrient components in a free water surface (FWS) constructed wetland treating all the effluent from a commercial recirculating rainbow trout Oncorhynchus mykiss farm.
Dalsgaard, J   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy