Wastewater treatment: Activated sludge

... Example Consider the following activated sludge system Calculate: The aeration period BOD loading F/M ratio SS and BOD removal efficiency tsludge Return activated sludge rate What is the required ... Nondegradable organic matter • Inert suspended solids Activated sludge floc with slime • MLSS rapidly (20-45 min) absorbs organic matter in wastewater influent • Bacteria then solub...

Ngày tải lên: 11/06/2016, 14:28

... tank and a microfiltration membrane as separation apparatus The aeration tank was made from Plexiglas with a working volume of liters Air was supplied to the aeration tank through diffusers at a ... quality, and kinetic parameters were also investigated PERMEATE COMPRESSED AIR INFLUENT AIR SLUDGE WASTE Fig Schematic Diagram of the Coupling of Activated Sludge Proces...

Ngày tải lên: 05/09/2013, 09:08

... settling in a clarifier is one of the most critical operations in the activated sludge process Bioflocculation of activated sludge determines how the sludge will dewater, flow, and settle, all of ... aluminium ions also seem to assist in floc binding and the flocculation of other organic material The cation contribute significantly to the binding of the sludge...

Ngày tải lên: 27/06/2014, 13:20

Ngày tải lên: 13/11/2014, 07:33

... VIETNAM NATIONAL UNIVERSITY, HANOI VNU UNIVERSITY OF SCIENCE NAKHONEKHAM XAYBOUANGEUN SEAFOOD PROCESSING WASTEWATER TREATMENT BY USING ACTIVATED SLUDGE REACTOR FOLLOWED BY CYPERUSMALACENSIS LAM CONSTRUCTED ... (Sirianuntapiboon and Nimnu, 1999) To avoid this impact, treatment of seafood processing wastewater before discharge has been proposed A candidate meth...

Ngày tải lên: 09/01/2015, 08:53

Ngày tải lên: 06/06/2016, 11:00

... development of symbiotic hollow fiber membrane photobioreactor configurations for simultaneous activated sludge wastewater treatment and microalgal biomass production, opening up an avenue for the application ... 69 Symbiotic Hollow Fiber Membrane Photobioreactor for Microalgal Growth and Bacterial Wastewater Treatment 69 5.1 Introduction 69 iv 5.2...

Ngày tải lên: 09/09/2015, 11:31

... OUTLINE OF WASTEWATER TREATMENT SYSTEM New Amagasaki water treatment plant (WTP) (373,000m3･d-1) of the Hanshin Water Supply Authority (HWSA) has introduced advanced water treatment system with ... Pollution Control Law and utilizing water resource effectively, washwater is reclaimed as raw water Figure shows wastewater treatment process at the WTP The wastewater treatment...

Ngày tải lên: 05/09/2013, 08:40

... for 3.0 and 5.0 % of total VS concentrations could not be conducted because of low VS concentration of sewage sludge 20 mL of seed sludge and appropriate amounts of food waste and sewage sludge ... produce moles of hydrogen with mole of n-butyrate or moles of hydrogen with mole of acetate from mole of hexose In most cases using soluble defined substra...

Ngày tải lên: 05/09/2013, 08:40

... with incubation time In other word, the adsorption capacity of PAC increased with increase in the amount of organic carbon on PAC The adsorption capacity of PAC after 4th incubation was almost the ... of organic carbon on PAC after each incubation Figure Figure shows the adsorption isotherm of new PAC, PAC in the aeration tank, and PAC after...

Ngày tải lên: 05/09/2013, 08:40

... an effort to develop an effective extraction method for bioflocculants from the microbial cell surface Materials and Methods Activated sludge samples Activated sludge samples were collected from ... was the most effective extraction method for activated sludge However, cell disruption is not effective for the isolation of bioflocculants Thus, NaOH extr...

Ngày tải lên: 05/09/2013, 09:08

... natural activated sludge An extracellular polymer was extracted from an activated sludge suspension and was characterized because an extracellular polymer closely related to flocculation of activated ... drawn from the results of the study An extracellular polymer closely related to flocculation of activated sludge was obtained from th...

Ngày tải lên: 05/09/2013, 09:08

... aminopeptidase Valine aminopeptidase Leucine aminopeptidase Lipase (C14) Lipase (C8) Esterase (C4) Alkaline phosphatase Polysaccharidasesesrot Proteases Enzyme Figure Enzymatic profiles in wastewater under ... niger bioaugmentation enhanced the COD uptake rate four times than activated sludge bioaugmentation Table Kinetics of protein removal in domestic wastewater by A...

Ngày tải lên: 05/09/2013, 09:08

... archaebacteria Candidatus ‘Accumulibacter phosphatis’ Candidatus ‘Accumulibacter phosphatis’ Candidatus ‘Accumulibacter phosphatis’ Candidatus ‘Accumulibacter phosphatis’ Candidatus ‘Accumulibacter phosphatis’ ... Quantitative PCR and FISH method in Activated sludge The amount of Candidatus ‘Accumulibacter phosphatis’ in the la...

Ngày tải lên: 05/09/2013, 09:38

... carbon storage is one of the important processes for the DOC removal in activated sludge CONCLUSIONS The occurrence of temporal carbon storage material, PHA, was confirmed in the course of wastewater ... calculated as the amount of PHA increased during the anaerobic phase divided by the amount of carbon supplied as influent in one cycle...

Ngày tải lên: 05/09/2013, 09:38