scholarly journals EXPERIMENTAL RESEARCH ON REMOVING SUSPENDED SOLIDS AND AMMONIUM IONS FROM SLUDGE LIQUOR / SKENDINČIŲJŲ MEDŽIAGŲ IR AMONIO JONŲ ŠALINIMO IŠ DUMBLO VANDENS EKSPERIMENTINIAI TYRIMAI

2014 ◽  
Vol 6 (4) ◽  
pp. 451-455
Author(s):  
Kasparas Gražinskas ◽  
Aušra Mažeikienė ◽  
Marina Valentukevičienė
Keyword(s):  
Water Management ◽  
Experimental Research ◽  
Laboratory Testing ◽  
Suspended Solids ◽  
Ammonium Ions ◽  
Filter Media ◽  
Natural Sorbent ◽  
Media Research ◽  
Technical University ◽  
Experimental Bench

The article investigates the processes of removing suspended solids and ammonium ions from sludge liquor. Experimental research was carried out at the Water Management Department laboratory of Vilnius Gediminas Technical University applying an experimental bench made of filters equipped with the zeolites of a different fraction and other appliances. Laboratory testing looked at the use of natural sorbent zeolite for removing ammonium ions from sludge liquor mixing liquid with powdered zeolite and filtering through zeolite filter media. Research was carried out employing the particles of zeolite 1.0–1.5 mm; 2.0–2.5 mm; 2.5–3.15 mm in diameter. The highest efficiency of removing ammonium ions reached 76% and was obtained using zeolite particles 2.0–2.5 mm in diameter. Straipsnyje nagrinėjami skendinčiųjų medžiagų ir amonio jonų šalinimo iš dumblo skysčio procesai. Eksperimentiniai tyrimai buvo rengiami VGTU Vandentvarkos katedros laboratorijoje įrengtame eksperimentiniame stende, sudarytame iš filtrų, užpildytų skirtingos frakcijos ceolitų ir kitos įrangos. Laboratorinio tyrimo metu buvo nagrinėjama, kaip gamtinis sorbentas ceolitas naudojamas amonio jonams iš dumblo vandens šalinti, skystį maišant su ceolito milteliais ir filtruojant per ceolito užpildus. Tyrimai vykdyti naudojant 1,0–1,5 mm, 2,0–2,5 mm, 2,5–3,15 mm ceolito frakcijas. Šalinant amonio jonus iš dumblo skysčio, didžiausias efektyvumas, naudojant 2,0–2,5 mm frakcijos ceolitą, siekia 76 %.

Investigating Recycled Filter Media in order to Remove Fluoride Compounds from Groundwater

2017 ◽  
Author(s):  
Youssef-Amine Boussouga ◽  
Marina Valentukeviciene ◽  
Ramune Zurauskiene
Keyword(s):  
Water Management ◽  
Removal Efficiency ◽  
Test Bench ◽  
Pilot Test ◽  
Filter Media ◽  
Filtration Process ◽  
Technical University

In this article, an enhanced recycled filter media for the removal of fluoride compounds from groundwater via filtration process was investigated. Experiments were made to investigate the influence of recycled filter media on removal efficiency of fluoride compounds. The recycled backwash cake based filter media used at Lithuanian water works were inves-tigated in a pilot test-bench constructed for this research in the Water Management Laboratory of Vilnius Gediminas Technical University.

Removal of Oily Wastewater Using Chitosan-filled Filter Media

2015 ◽  
Vol 74 (7) ◽  
Author(s):  
Aziatul Niza Sadikin ◽  
Mohd Ghazali Mohd Nawawi ◽  
Norasikin Othman ◽  
Roshafima Rasit Ali ◽  
Umi Aisah Asli
Keyword(s):  
Palm Oil ◽  
Suspended Solids ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Palm Oil Mill Effluent ◽  
Filter Media ◽  
Fibrous Media ◽  
Filtration Process ◽  
Empty Fruit Bunches ◽  
Palm Oil Mill

The aim of this research is to evaluate the feasibility of the fibrous media for removal of total suspended solid and oil grease from palm oil mill effluent (POME). Wet lay-up method was adopted for filter fabrication where empty fruit bunches (EFB) were matted together with chitosan in non-woven manner. Chitosan-filled filter media were tested for their ability to reduce Total Suspended Solids (TSS) and Oil & Grease (O&G) from palm oil mill effluent. Filtration process results indicated that chitosan-filled filter media filtration only removed up to 28.14% of TSS and 29.86% of O&G. 

Laboratory Testing of Environmentally Friendly Sodium Silicate Systems for Water Management Through Conformance Control

2016 ◽  
Vol 31 (04) ◽  
pp. 337-350 ◽  
Author(s):  
Dimitrios G. Hatzignatiou ◽  
Reza Askarinezhad ◽  
Nils H. Giske ◽  
Arne Stavland
Keyword(s):  
Water Management ◽  
Sodium Silicate ◽  
Laboratory Testing ◽  
Environmentally Friendly ◽  
Conformance Control

Experimental research on water management in proton exchange membrane fuel cells

2009 ◽  
Vol 189 (2) ◽  
pp. 882-887 ◽  
Author(s):  
Li-jun Yu ◽  
Wen-can Chen ◽  
Ming-jun Qin ◽  
Geng-po Ren
Keyword(s):  
Water Management ◽  
Fuel Cells ◽  
Experimental Research ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Exchange Membrane

scholarly journals Effect of filter media and hydraulic retention time on the performance of vertical constructed wetland system treating dairy farm wastewater

2021 ◽  
Vol 27 (1) ◽  
pp. 200436-0
Author(s):  
Deepa Minakshi ◽  
Pradeep Kumar Sharma ◽  
Anju Rani
Keyword(s):  
Suspended Solids ◽  
Hydraulic Retention Time ◽  
Oxygen Demand ◽  
Dairy Farm ◽  
Ammonium Nitrogen ◽  
Laboratory Scale ◽  
Dairy Wastewater ◽  
Filter Media ◽  
Wastewater Purification ◽  
Maximum Removal

This study deals with the dairy wastewater treatment using laboratory scale vertical flow (VF) constructed wetlands with the <i>Canna indica</i> plantation over wetland beds due to phytoremediation capabilities. Three laboratory scale VF CWs (CW-A, CW-B and CW-C) each with an area of 0.135 m2 filled with gravel (CW-A: 20 mm; CW-B:10 mm gravel) and sand (CW-C) receiving 0.04 m3 d-1 dairy wastewater were operated for the wastewater purification. Each unit was operated at three hydraulic retention times (HRTs) i.e. 12 h, 24 h and 48 h for assessing its effect on wastewater purification . Among all units, removal rates fluctuated as: total suspended solids (TSS): 64.2–74.5%; biochemical oxygen demand (BOD): 45.3 – 63.1%; ammonium nitrogen (NH4–N): 29.6 – 56.5% and phosphate phosphorous (PO4–P): 20.5 – 57.8% at different HRTs. Increase in HRT showed better removal of pollutants in all CWs. Moreover, maximum removal of pollutants excluding TSS and NH4-N was achieved in CW-B at 48 h HRT. CW-B with similar HRT provided maximum removal of PO4-P (57.8%), BOD (63.1%) and chemical oxygen demand (COD): 67.4%. Increase in the size of filter media, from sand (0.25 mm) to 20 mm gravel resulted in higher removal of NH4 -N from wastewater.

scholarly journals RESEARCH ON THE EFFICIENCY OF FILTER MEDIA / FILTRAVIMO UŽPILDŲ EFEKTYVUMO TYRIMAI

2013 ◽  
Vol 5 (4) ◽  
pp. 455-460 ◽  
Author(s):  
Ramunė Albrektienė ◽  
Mindaugas Rimeika ◽  
Viktorija Petraitytė
Keyword(s):  
Organic Compounds ◽  
Quartz Sand ◽  
Active Filter ◽  
Filter Medium ◽  
Ammonium Ions ◽  
Filter Media ◽  
Iron Compounds ◽  
Drinking Purposes ◽  
Different Types ◽  
Manganese Compounds

The main problems of ground water for drinking purposes in Lithuania include the increased concentration of iron, ammonium and manganese compounds. Organic compounds have the main impact on removing iron, ammonium and manganese compounds. The coagulation process is employed for removing organic compounds. Along with the removal of organic compounds, iron, ammonium and manganese compounds can be taken away in a more efficient way. Different filter media could be used for removing iron, ammonium and manganese. The purpose of research was to evaluate removal effectiveness of iron, ammonium, manganese and organic compounds applying different types of filter medium (quartz sand, zeolite, Birm and quartz sand from an active filter). The conducted research has showed that all tested filter media (Birm, zeolite, quartz sand and quartz sand from the active filter) effectively remove iron compounds (up to 99%). The efficiency of removing ammonium ions may reach 99% for Zeolite and 95% for quartz sand from the active filter. When using quartz sand from the active filter as filter medium, up to 85% removal efficiency for manganese ions was reached. Article in Lithuanian. Santrauka Pagrindinė požeminio vandens, kuris Lietuvoje naudojamas kaip geriamasis vanduo, kokybės problema yra per didelės gamtinės geležies, amonio ir mangano junginių koncentracijos. Šalinti geležies, amonio ir mangano junginius sudėtingiau, kai šie cheminiai elementai sudaro kompleksinius organinius junginius su organinėmis medžiagomis. Organiniai junginiai gali būti šalinami taikant koaguliaciją. Pašalinus organinius junginius lengviau pasišalina ir geležies, amonio bei mangano junginiai. Tam naudojami įvairūs filtravimo užpildai. Tiriama, kaip efektyviai geležies, amonio, mangano ir organiniai junginiai šalinami naudojant skirtingus filtrų užpildus (kvarcinį smėlį, ceolitą, Birm ir kvarcinį smėlį iš veikiančio filtro). Atlikus tyrimus naudojant koaguliantą ir pro skirtingus filtrų užpildus filtruojant vandenį, kuriame didelės geležies, mangano, amonio ir organinių junginių koncentracijos, nustatyta, kad visi tirti filtravimo užpildai (Birm, ceolitas, kvarcinis smėlis iš veikiančio filtro ir kvarcinis smėlis) efektyviai (iki 99 %) šalina geležies junginius. Amonio jonus efektyviausiai šalina ceolito (iki 98 %) ir kvarcinio smėlio iš veikiančio filtro (iki 95 %) filtravimo užpildai. Mangano junginius efektyviausiai (iki 85 %) šalina kvarcinio smėlio iš veikiančio filtro užpildas.

scholarly journals EFEKTIFITAS PENGELOLAAN AIR MINUM UNTUK RUMAH TANGGA

2018 ◽  
Vol 6 (2) ◽  
pp. 184-187
Author(s):  
Nurbaiti Nurbaiti
Keyword(s):  
Water Treatment ◽  
Natural Resources ◽  
Research Design ◽  
Experimental Research ◽  
Laboratory Testing ◽  
Human Life ◽  
The Body ◽  
Coliform Bacteria ◽  
Bivariate Analysis ◽  
Number Of Bacteria

Water is one of natural resources that has a very important function for human life. Based on research, the coliform bacteria produces etionin substances that can cause cancer and also illness if the amount was excessive in the body. The purpose of this research was to determine the number of bacteria in the water after doing filtration by using a 0.5 micron and 0.1 micron cartridge to the total of coliform bacteria. Data were analyzed by bivariate analysis using t-test. The results showed that there was no difference to the average number of bacteria that were filtered between the first and the second filtrations. This study was an experimental research design using pre and post-only design. The results based on laboratory testing showed that there was reduction in the number of coliform bacteria after filtering using a 0.5 micron and 0.1 micron cartridge. This filtration can be used to reduce the amount of bacteria in the water and if it is added with a complete tool can be used for water treatment.

scholarly journals A Beginner’s Guide to Water Management — Color

EDIS ◽  
1969 ◽  
Vol 2004 (4) ◽  
Author(s):  
Florida LAKEWATCH
Keyword(s):  
Water Management ◽  
Aquatic Plants ◽  
Suspended Solids ◽  
Water Clarity ◽  
Empirical Models ◽  
Biological Productivity ◽  
Light Refraction ◽  
Natural Processes ◽  
Apparent Color ◽  
True Color

Aside from water clarity, the color of water in a lake is one of the main attributes that captures people's attention—particularly if the color begins to change. As this circular explains, changes in color can affect the biological productivity of a waterbody including the abundance of aquatic plants and/or algae. However, readers will also learn that most of these changes are the result of natural processes that occur within the watershed. Related topics of discussion include apparent color, true color, suspended and dissolved substances, along with the dynamics of light refraction. The last section provides two empirical models (equations) that can be used to determine if color in a waterbody is the result of algae or suspended solids.  This document, CIR108, is the eighth of a series of information circulars dedicated to familiarizing citizens with the language and techniques used by those involved in water management. © January 2004, 1st Edition. Cir108/FA105: A Beginners Guide to Water Management?Color (ufl.edu)

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