WASTE WATER TREATMENT METHODS

Vietnam Standard TCVN 5945: 2005Industrial waste water - Discharge standardsThe standard TCVN 5945:2005 is to replace the TCVN 5945:1995.The standard TCVN 5945:2005 is prepared by the Vietnamese Technical StandardsUnit/Standard 147 “Water quality”, proposed by Vietnam Directorat[r]

50 100 150 200 250 300 350c*(ppm)q*(mg/g)Science & Technology Development, Vol 11, No.08 - 2008 Trang 102 Three types of kinetics models have been used to evaluate the flow of the process: the outer mass transfer [3], the pseudo 1st order and the pseudo 2nd order [4]. By plotting the experi[r]

1998b. Estimation of the nutrient value of agricultural slurries by measurement of physical and chemical properties. Journal of Agricultural Engineering Research 71: 291-305. Schaafsma, J.A., Baldwin, A.H. & Streb, C.A. 2000. An evaluation of a constructed wetland to treat wastewater from a[r]

water from the main factories (HABECO, Trang An JSC and Thuong Dinh industrial park, Hanoi Soap Joint Stock Company (HASO); Saovang Joint-stock Rubber Company (SRC); Tool No.1 Joint-stock Company (TJC)) show that, the parameters of TSS, BOD5, COD, total of nitrogen, total of phosphorus are hi[r]

river where it is being discharged at present. The committee at present is using some portion of the treated wastewater for gardening nearby and cleaning the surroundings. Similarly, the neighbourhoods of the wastewater treatment plant and Sunga wastewater treatment plant committee are[r]

Inactivation of microorganisms using chlorine, ozone,etc.CoagulationObjective: To remove suspended solids (turbidity).Suspended solids are negatively charged and repel eachother in solution. When a coagulant is added the particles areneutralized and agglomerate.Setup in Treatment PlantsCoagul[r]

reduced, resulting in energy savings; conversely, the orifice uses an absorber tower with a smaller volume and does not clog easily, however, this requires more seawater (4). 4. Experimental method: The seawater FGD process 4.1 The selection of a seawater FGD system simulation According to the asses[r]

V,k,CoV,k,Ctime=0time=tdCV= −VkCdtC− kt=eCoExampleAn industrial facility generates 1.2 m 3 of waste with a toxic chemical ata level of 25 ppm. Regulations allow the disposal of the waste into themarine environment only if the chemical at a level that does notexceed 0.5 ppm. The industr[r]

•Thermal•SolidsChemicalChemicalBiologicalBiological•Radio-isotopes•Hardness•Pathogens•Heavy metals•Nutrients•Pesticides•Oxygen demanding waste•Volatile organic compounds (VOCs)CIVL375-MaraqaTreatment Reactors• Batch Reactors• Completely Stirred Tank Reactors (CSTR)• Plug-Flow Reactors• Disper[r]

0.511.255.560.51The meq/l bar graph of water after lime/soda-ash treatment but before recarbonationNote, the pH of the treated water is high (about 11), so CO2 is added (recarbonation)to reduce the pH.

Spectrophotometric method requires only a simple optical measuringmachine and inexpensive reagents. Spectrophotometric method UV-Visbased on pyridine - pyrazolone or pyridine - barbituric reagentsdetermining cyanide were suggested by the authors but not being studiedin detail.Therefore, the theme "R[r]

The electrical power requirement concentrates particularly on the production department. Gas is used for the heating and for the production of the bonding agents. Diesel is used mainly for the internal vehicle park. Our energy consumption is registered systematically and consumption emphasis is reve[r]

protectionArticle 60.- Control and treatment of the pollution ofthe water environment in river basinsArticle 61.- Responsibilities of provincial-levelPeople’s Committees for water environmentalprotection in river basinsArticle 62.- Organization of water environmentalprote[r]

- Give the first two as an example: +_What are we destroying?_ _ forest: Don’t destroy the forests_ _ +What are we wasting?_ _ water: Don’t waste water._ _DON’T DESTROY OUR ENVIRONMENT!_[r]

Tạp chí Nghiên cứu Khoa học 2006:5 158-166 Trường Đại học Cần Thơ CHẤT LƯỢNG NƯỚC MẶT VÀ LƯỢNG THẢI HỮU CƠ TẠI KHU VỰC TRẠI CHĂN NUÔI THỰC NGHIỆM KHU II ĐẠI HỌC CẦN THƠ Bùi Thị Nga và Nguyễn Văn Toàn1ABSTRACT A study was carried out at the experimental animal husbandry farm in Can Tho University for[r]

Even if all the necessary information exists in a spreadsheet, the facility manager may not have recorded all the information in all the right places to close all the loops on connections between assets and the procedures that that need to be performed on the assets. Manual systems live and die on t[r]

Oil & Grease was significantly higher in the Orlando in-bay Automatics and conveyor categoriesthan in the Orlando self-service facilities. However, in Boston the in-bay sites had the lowest meanvalues for oil & grease. These results indicate that differences in car wash type are not[r]

We are………………………………………………………………4. That book is very interesting. We want to read it.That book which ............................................................................5. People speak English on over the world.English............................................................................[r]

Figure 11 – Cost of Stored Hydrogen as a Chemical Hydride and by ConventionalMethodsVEHICLE PROGRAMThe focus of our attention in the Vehicle Program during the past year has been the completionof the demonstration of the mobile chemical-hydride hydrogen generator. To satisfy the goals ofthe program,[r]

Pollution1. Pollution is the fouling of the environment – that is, land, water and air – by waste, smoke, chemicalsand other harmful substances. Every industrial country faces the problem of waste. As factories makenew goods for people to buy, old ones are thrown out with the ho[r]