upflow anaerobic sludge blanketreactor

... Compared to other anaerobic technologies such as the Anaerobic Sequencing Batch Reactor (ANSBR) and Anaerobic Filter (AF), the Upflow Anaerobic Sludge Blanket (UASB) reactor developed by G Lettinga ... separator Direction of flow Anaerobic Reaction column Anaerobic Sludge Blanket Influent Anaerobic granules Figure 2: A typical UASB reactor One of the other features of this anaerobic process is its ... MICROSCOPY 134 4.19.1 Images of anaerobic sludge along UASB at h HRT under steady state conditions 134 4.19.2 Images of anaerobic sludge along UASB at h HRT under steady state...

Ngày tải lên: 28/11/2015, 13:44

... listed in Table 2.3 Seed sludge The sludge used for the present experiment was collected from the anaerobic pond, due to its contents of anaerobic microbial life [8] On these, sludge was obtained ... that in R1, and R2 3.3 sludge bed growth Microorganism’s growth in such anaerobic reactors as HUASB reactor has been considered as the most responsible key of the successful anaerobic treatment ... process[15] There was slow growth of the sludge beds in each reactor However, the sludge bed presented an improvement in both reactors with only 57 days The evolution of sludge bed particles was illustrated...

Ngày tải lên: 05/09/2013, 16:11

... developing countries as yet 21 Anaerobic Main Treatment Sludge Aerobic Main Treatment Water Gas Water Post-Treatment aerobic Sludge Sludge Post-Treatment anaerobic Water Sludge Water Gas Figure 2.5 ... of anaerobic digestion technology for municipal wastewater 26 2.5 Upflow anaerobic filter (UAF) 29 2.5.1 Origin and Development of Anaerobic Filter 32 MATERIALS AND METHODS 3.1 Lab Scale Upflow ... Principal differences between anaerobic and aerobic intensive wastewater treatment 25 Figure 2.6 Schematic diagram of an upflow anaerobic filter 31 Figure 3.1 Picture of upflow anaerobic filters 44 Figure...

Ngày tải lên: 06/10/2015, 20:50

... processes to the anaerobic and oxic tanks Influent Effluent Anaerobic tank Oxic tank Anoxic tank Sludge return Phosphorus adsorption column Ozonation process Effluent Influent Anaerobic tank Oxic ... treatment of excess sludge may account for as much as 25% to 65% of total plant operating costs (Liu, 2003) One method to reduce excess sludge is solubilization of the excess sludge by using ozone, ... Reduction of growth yield potential of microorganisms in the sludge is also important for excess sludge reduction Kuba et al (1996) reported that sludge production efficiency could be decreased by using...

Ngày tải lên: 05/09/2013, 09:38

... same way They were then subjected to the MAR-FISH analysis Batch experiment with activated sludge Activated sludge samples were obtained from a full-scale wastewater treatment plant in October 2006 ... conducted in triplicate As control, activated sludge mixed liquor treated at 70oC for 10 was also incubated with the same substrate The activated sludge was collected after the incubation, and ... them Fig Results of the first experiment performed with sludge sampled in October 2006 Fig Results of the second experiment performed with sludge sampled in December 2006 - 220 - Journal of Water...

Ngày tải lên: 05/09/2013, 09:38

... mà có công thức cụ thể cách thay C giá tiêu  Tuổi bùn SRT SRT (Sludge Retention Time) dùng đồng nghĩa với SA (Sludge Age), SDT (Sludge Detention Time), thời gian lưu tế bào MCRT (Mean Cell Residence ... nước ta toán đặt thời gian gần Mô hình công nghệ sinh học kết hợp lọc dòng ngược bùn sinh học (Upflow Sludge Blanket Filter - USBF)xử lý nước thải công nghệ cải tiến trình bùn hoạt tính có kết hợp ... Nghiên cứu hiệu xử lý nước rỉ rác mô hình công nghệ sinh học kết hợp lọc ngược bùn sinh học (Upflow Sludge Blanket Filtration – USBF)” hình thành, với mong muốn nghiên cứu tìm phương pháp xử lý...

Ngày tải lên: 26/04/2014, 12:02

... sewage sludge which are effect on transporting and bleaching of heavy metal from sewage sludge In which, it is necessary to pay more attention to heavy metal mobilization mechanisms in sewage sludge ... Removal of heavy metals from anaerobiccally digested about municipal sewage sludge Base on collected data to build suitable releasing heary metals method in treatment sewage sludge by a new chemical ... comes from market Municipal sewage sludge was removed inert Material and methods substances such as bridges, stones, special solid waste after collection The sewage sludge has 2.1 Pilot equipment...

Ngày tải lên: 24/06/2015, 08:16

... to study PAHs in the municipal sewage sludge In recent year, the anaerobic digestion of PAHs compounds in sewage sludge was paid more attention when the anaerobic method was applied like solution ... concentration in the sludge and strongly relative to partition-coefficient of PAHs between water phase and sludge phase Therefore, sewage sludge is pre-treated by heat or ozone before anaerobic decomposition ... total PAHs in sewage sludge from 54% to 60% Study the effect of nonionic surfactant (Tween 80) on decomposition of PAHs compounds in thermophilic anaerobic codigestion of sludge from Kim Nguu...

Ngày tải lên: 24/06/2015, 08:16

... to study PAHs in the municipal sewage sludge In recent year, the anaerobic digestion of PAHs compounds in sewage sludge was paid more attention when the anaerobic method was applied like solution ... concentration in the sludge and strongly relative to partition-coefficient of PAHs between water phase and sludge phase Therefore, sewage sludge is pre-treated by heat or ozone before anaerobic decomposition ... to study PAHs in the municipal sewage sludge In recent year, the anaerobic digestion of PAHs compounds in sewage sludge was paid more attention when the anaerobic method was applied like solution...

Ngày tải lên: 19/02/2017, 18:54

... sludge mixture was governed by readsorption during extractions During the sludge composting process the organic matter in the sludge is humified causing variation in metal speciation in the sludge ... fraction in the sludge and the compost mixture (Fig 11) There was a shift in metal speciation to become more available when the sludge was mixed with the sawdust a n d recycled sludge compost, ... sewage sludge through complex formation Simeoni et al (1984) also found that the composting of sludge decreased the Pb mobility and plant availability The changes of Pb speciation in red mud sludge...

Ngày tải lên: 23/09/2012, 14:47

... This paper describes the solubilization of excess sludge by high speed rotary disk process This method is a kind of physical treatment The excess sludge from final sedimentation tank in wastewater ... apparatus used in this study is shown in Fig.1 Different concentrations of sludge were processed the experiments The sludge samples (10L each) were input at the inlet of fixed upper disk The samples ... respectively, and rotating speed was set equivalent to 3500 r.p.m from high speed rotary disk sludge 200φ Pump sludge tank flow meter 100φ unit: mm input output output 3500r.p.m high speed rotary disk...

Ngày tải lên: 05/09/2013, 08:40

... sewage sludge or sewage sludge/ food waste codigestion, sewage sludge will be the important source for hydrogen production due to its amounts Thus, in this work, food waste and sewage sludge were ... and sewage sludge, representing typical Korean food waste and sewage sludge Food waste, sampled from a dining hall, was crushed by an electrical blender under anaerobic condition Sewage sludge was ... F., 2000 Dual anaerobic co-digestion of sewage sludge and confectionery waste, Bioresource Technol., 71, 77-82 Lay, J.-J., 2000 Modeling and optimization of anaerobic digested sludge converting...

Ngày tải lên: 05/09/2013, 08:40

... 3,5-DCP in activated sludge was determined supernatant by centrifugation (8,000 rpm, 20 minutes) The adsorption Activated sludge with PAC was separated from From 100 to 200 mg of the sludge were added ... of activated sludge from the sedimentation tank The aeration and sedimentation tanks had working volumes of 2.5 L and 0.2 L, respectively Higashi-Hiroshima, Japan The activated sludge was obtained ... 3,5-DCP adsorbed on PAC was determined After The adsorption capacity of the sludge without PAC was also evaluated using the sludge in the control reactor PAC was placed into a bag of dialysis membrane...

Ngày tải lên: 05/09/2013, 08:40

... fermentation Anaerobic treatment process Excess Sludge Sludge solubilization by subcritical water Influent Subcritical water process Phosphate recovery on crystallization MAP process Solubilized sludge ... Three-phase diagram and saturated vapor pressure curve of water Mechanism of sludge solubilization Various organic components of sludge are decomposed (mainly hydrolyzed) and oxidized during subcritical ... capable of decomposing the organic and inorganic solid fractions of sludge and producing highly concentrated liquid of solubilized sludge Outline of MAP process In this study, MAP (magnesium ammonium...

Ngày tải lên: 05/09/2013, 09:08

... of this method is that it produces sludge that is needed to be disposed According to the current Indonesian Government Regulation (No 18, 1999), the textile sludge from chemical treatment is classified ... disadvantages including high sludge production and large area requirement In addition, the performance of CASP is strongly affected by several parameters such as feed concentration sludge retention time ... Liquor Suspended Solid), organic loading, food to microorganism ratio (F/M ratio), sludge wastage rate, and sludge settling characteristic in sedimentation tank An increase in biomass concentration...

Ngày tải lên: 05/09/2013, 09:08

... from natural activated sludge, which is a complex microbial system A strong flocculant from natural activated sludge might economically provide an effective use of excess sludge In a previous paper ... for bioflocculants from the microbial cell surface Materials and Methods Activated sludge samples Activated sludge samples were collected from an aeration tank of the Obihiro-South local domestic ... Table Yields and Chemical Components of Polymers Extracted from Activated Sludge Steaming1 NaOH2 SDS3 Washing4 (mg/g, dry sludge) Yields 194.3 239.5 192.3 13.3 (µg/mg, polymer) Protein 294.3 685.0...

Ngày tải lên: 05/09/2013, 09:08

... activated sludge have not been well investigated If a strong flocculant could be obtained from natural activated sludge, it would be economical and it might bring about the effective use of excess sludge ... 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 sludge ... flocculating test Deflocculated sludge was prepared by letting 75 ml of activated sludge to be suspended in 225 ml of distilled water followed by sonication for The sludge suspension was centrifuged...

Ngày tải lên: 05/09/2013, 09:08

... The anaerobic seed sludge used in this study was obtained from a full-scale upflow anaerobic sludge blanket reactor treating citrate-producing wastewater Prior to use, the seed sludge was first ... hydrophobicity of granular sludge from upflow anaerobic sludge bed reactors Appl Environ Microbiol Vol.61, 3676-3680 Dentel, S.K (1997) Evaluation and role of rheological properties in sludge management ... activated sludge Biores Technol Vol.90, 215-220 Yu, H.Q., Zhu, Z.H., Hu, W.R., Zhang, H.S (2002) Hydrogen production from rice winery wastewater in an upflow anaerobic reactor by using mixed anaerobic...

Ngày tải lên: 05/09/2013, 09:08

... activated sludge samples were collected from waste water treatment plant in Tokyo These plants were configured as aerobic, anaerobic aerobic or anaerobic anoxic–aerobic modes All activated sludge ... METHODS Activated sludge samples For quantification, activated sludge samples were collected from laboratory-scale EBPR process and full-scale wastewater treatment plants 20 activated sludge samples ... activated sludge by the quantitative PCR method and by the FISH method, and their correlation The results from laboratory-scale activated sludge are shown as “●” The results of full-scale activated sludge...

Ngày tải lên: 05/09/2013, 09:38

... decolorization Dye decolorizing efficiency by digested sludge To reveal the decolorizing efficiency of digested sludge on MO and RB4 decolorizations under anaerobic mesophilic and thermophilic conditions, ... so increased the potential of digested sludge for dye decolorization These results revealed that biological dye decolorization using anaerobic digested sludge at high temperature could be accelerated ... RESULTS AND DISCUSSION Dye decolorization Dye decolorizing efficiency by digested sludge The potential of digested sludge on MO and RB4 tested by variation of dye concentration was shown by the...

Ngày tải lên: 05/09/2013, 09:38