Development of Filtration System for Removal of Contaminated Suspended Solids in an Enclosed Sea Area

2006 ◽  
Vol 3 (6) ◽  
pp. 13319
Author(s):  
M Fukue ◽  
T Minato ◽  
K Uehara ◽  
Y Sato ◽  
T Inoue ◽  
...  
Keyword(s):  
Suspended Solids ◽  
Filtration System ◽  
Sea Area

scholarly journals The application of ceramic membranes for treating effluent water from closed-circuit fish farming

2016 ◽  
Vol 42 (2) ◽  
pp. 59-66 ◽  
Author(s):  
Małgorzata Bonisławska ◽  
Arkadiusz Nędzarek ◽  
Arkadiusz Drost ◽  
Agnieszka Rybczyk ◽  
Agnieszka Tórz
Keyword(s):  
Suspended Solids ◽  
Fish Farming ◽  
Ceramic Membranes ◽  
Total Iron ◽  
African Catfish ◽  
Effluent Water ◽  
Filtration System ◽  
Rejection Coefficient ◽  
Filtration Stage ◽  
Treating Effluent

Abstract The aim of the study was to analyze and assess the possibility of using a two-stage filtration system with ceramic membranes: a 3-tube module with 1.0 kDa cut-off (1st stage) and a one-tube module with 0.45 kDa cut-off (2nd stage) for treating effluent water from a juvenile African catfish aquaculture. The study revealed that during the 1st filtration stage of the effluent water, the highest degrees of retention were obtained with respect to: suspended solids SS (rejection coefficient RI=100%), turbidity (RI=99.40%), total iron (RI=89.20%), BOD5 (RI=76.0%), nitrite nitrogen (RI=62.30%), and CODCr (RI=41.74%). The 2nd filtration stage resulted in a lower reduction degree of the tested indicators in comparison to the 1st filtration stage. At the 2nd stage, the highest values of the rejection coefficient were noted in for the total iron content (RIV=100%), CODCr (RIV=59.52%; RV=64.28%, RVI=63.49%) and turbidity (RIV and RV = 45.0%, RVI=50.0%). The obtained results indicate that ceramic membranes (with 1.0 and 0.45 kDa cut-offs) may be used in recirculation aquaculture systems as one of the stages of effluent water treatment.

scholarly journals Greywater treatment by granular filtration system using volcanic tuff and gravel media

2017 ◽  
Vol 75 (10) ◽  
pp. 2331-2341 ◽  
Author(s):  
Abeer Albalawneh ◽  
Tsun-Kuo Chang ◽  
Heba Alshawabkeh
Keyword(s):  
Removal Efficiency ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Sodium Adsorption Ratio ◽  
Biological Oxygen Demand ◽  
Exchangeable Sodium ◽  
Volcanic Tuff ◽  
Arid Conditions ◽  
Filtration System ◽  
Granular Filtration

The main objective of this study was to evaluate the efficiency of a granular filtration system (GFS) in greywater treatment under arid and semi-arid conditions. Six GFSs were designed, constructed, and monitored for approximately 13 months. Each GFS served a single rural Jordanian home by treating their greywater. Volcanic tuff media were used as the filtration media in three of the GFSs while the remaining three GFSs used gravel media. Results show that the biological oxygen demand, chemical oxygen demand, and total suspended solids of the effluent were significantly lower as compared to the influent and demonstrated a removal efficiency of 73%, 65%, and 85%, respectively, when using volcanic tuff media. The removal efficiency was 49%, 51%, and 76%, respectively, when using gravel media. There was a significant increase in the electrical conductivity, pH, potassium (K+), magnesium (Mg2+), chloride (Cl−), sodium (Na+), sulfate (SO42−), bicarbonates (HCO3−), sodium adsorption ratio, and exchangeable sodium percentage in the effluents of the GFS that used volcanic tuff media. The study suggests that GFSs can adequately treat greywater under arid conditions. However, gravel media produce less concentrated effluent compared to the volcanic tuff media.

Hybrid filtration method for pre-treatment of stormwater

2010 ◽  
Vol 62 (12) ◽  
pp. 2937-2943 ◽  
Author(s):  
M. A. H. Johir ◽  
S. Vigneswaran ◽  
J. Kandasamy
Keyword(s):  
Removal Efficiency ◽  
Suspended Solids ◽  
Hybrid Filter ◽  
Filtration Method ◽  
Zinc Removal ◽  
Filtration System ◽  
Lead Zinc ◽  
Pre Treatment ◽  
Modified Fouling Index ◽  
Solids Removal

In this study the hybrid filtration process (combining fibre filter with deep bed dual media filtration) was investigated as pre-treatment to stormwater. This process was investigated in-terms of reduction in turbidity, dissolved organic carbon (DOC), colour, headloss development across the filters, suspended solids removal, organic matter removal, nutrients and heavy matter (such as iron, copper, lead, zinc) removal efficiency. A comparison was made between the hybrid filter with single media (sand) deep bed filter and fibre filter. It was found that the hybrid filtration system successfully removed turbidity (98%), colour (99%), suspended solids (99%), and DOC (55%). The removal efficiency of heavy metal was relatively low as the concentration of heavy metals present in stormwater was low. The removal efficiency of nitrate, nitrite and phosphorous (as orthophosphate) was 27, 35 and 72% respectively. Hybrid filtration processes showed a better reduction of Modified Fouling Index (MFI) value (from 15.500 s/l2 to 9 s/l2) compared with single media sand, anthracite and fibre filter which were 35 s/l2, 13 s/l2and 14 s/l2 respectively when operated at FeCl3 dose of 15 mg/l.

Enhanced flocculation/sedimentation process by a jet mixed separator

1998 ◽  
Vol 37 (10) ◽  
pp. 55-67 ◽  
Author(s):  
Yoshimasa Watanabe ◽  
Shinsuke Kasahara ◽  
Yoshihiko Iwasaki
Keyword(s):  
Retention Time ◽  
Large Scale ◽  
Suspended Solids ◽  
Hydraulic Retention Time ◽  
Vertical Plane ◽  
Solids Concentration ◽  
Filtration System ◽  
Physico Chemical ◽  
Inclined Tube ◽  
Rotating Biological Contactors

This paper deals with the performance of a jet mixed separator (JMS) which has a series of porous plates inserted in the channel perpendicular to a flow. The water passes through holes in the plates, thus creating jets which gently mix the water on itself. Simultaneous flocculation of suspended particles and sedimentation of grown-flocs occur in the JMS, because large-scale eddies in the vertical plane are almost absent in it. The JMS incorporated with inclined tube settlers was applied to the rapid sand filtration system instead of the combination of mechanical flocculator and sedimentation basin. The turbidity of JMS effluent was constantly below 1 TU at the hydraulic retention time of about 1 hour. The JMS without inclined tube settlers was used as physico-chemical pretreatment process for the rotating biological contactors. The BOD and suspended solids concentration of JMS effluent were around 50 and 40 mg/L, respectively at the hydraulic retention time of 45 min.

Resources and nutrients oriented greywater treatment for non-potable reuses

2008 ◽  
Vol 57 (12) ◽  
pp. 1901-1907 ◽  
Author(s):  
Fangyue Li ◽  
Joachim Behrendt ◽  
Knut Wichmann ◽  
Ralf Otterpohl
Keyword(s):  
Membrane Filtration ◽  
Suspended Solids ◽  
Elimination Rate ◽  
Treatment System ◽  
Permeate Flux ◽  
Kitchen Waste ◽  
Soil Fertilization ◽  
E Coli ◽  
Filtration System ◽  
Pass Through

This paper evaluated the performance and suitability of a resources and nutrients oriented decentralized greywater treatment system which uses a submerged spiral wound module. This greywater treatment system is aimed at treating and recovering the resources present in the wastewater. The study revealed that the UF membrane filtration system was able to maintain a permeate flux between 6 and 10 L/m2/h. TOC can be reduced from the influent value of 161 to 28.6 mg/L in the permeate, meaning an average elimination rate of 83.4%. In addition, soluble nutrients such as ammonia and phosphorus can pass through the UF membrane and remain in the permeate. The total nitrogen and total phosphorus in the permeate were 16.7 and 6.7 mg/L respectively. The permeate was low in turbidity (below 1 NTU) and free of suspended solids and E. coli and had an excellent physical appearance. The permeate can be used in gardening and agriculture for irrigation and soil fertilization or alternatively for toilet flushing after disinfection. The retentate generated in this system can be treated with blackwater and kitchen waste in an anaerobic digester at a later stage for producing biogas or compost.

Effect of organic suspended solids and their sedimentation on the surrounding sea area

2007 ◽  
Vol 149 (1) ◽  
pp. 70-78 ◽  
Author(s):  
Masaharu Fukue ◽  
Catherine N. Mulligan ◽  
Yoshio Sato ◽  
Toshihide Fujikawa
Keyword(s):  
Suspended Solids ◽  
Sea Area

scholarly journals The removal efficiency of total coliform, Escherichia coli, suspended solids, UV254 and colour using Zeliac filter in riverbank filtration system

2019 ◽  
Vol 55 (1) ◽  
pp. 24-35
Author(s):  
Hamidi Abdul Aziz ◽  
Nurazim Ibrahim ◽  
Motasem Y. D. Alazaiza ◽  
Cheong Kah Win
Keyword(s):  
Escherichia Coli ◽  
Suspended Solids ◽  
Total Coliform ◽  
Riverbank Filtration ◽  
Composite Adsorbent ◽  
Polluted River ◽  
E Coli ◽  
Filtration System ◽  
Good Potential ◽  
Potential Use

Abstract Addition of composite adsorbent Zeliac to a riverbank filtration system can enhance the removal of micropollutants in polluted river water. This paper aims to investigate the potential use of Zeliac to remove pollutants, such as total coliform, Escherichia coli, suspended solids (SSs), UV254 and colour, from the Sungai Kerian River. Two columns filled with Zeliac of different granular sizes were established and continuously run for 15 days. Maximum SS removals of 93% and 98% were recorded for Zeliac with granular sizes of 1.18–2 mm and 0.42–0.6 mm, respectively. Meanwhile, 99%–100% of total coliform was removed from the system, and no E. coli was detected in the effluent up to 15 h of the experiments. High removal efficiencies were also recorded for UV254 (>80%) and colour (>90%). Granular size showed no significant effect on the removal of the selected parameters, especially total coliform and E. coli. Zeliac showed good potential as an adsorbent to improve water treatment.

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