Search results with tag "Chemical oxygen demand"
BACKGROUND AND PRINCIPLE - IIT Delhi
web.iitd.ac.inExperiment 5: Chemical Oxygen Demand OBJECTIVE: To measure Chemical Oxygen Demand. BACKGROUND AND PRINCIPLE: The chemical oxygen demand (COD) determines the amount of oxygen required for chemical oxidation of organic matter using a strong chemical oxidant, such as, potassium dichromate under reflux conditions.
Petroleum & Petrochemicals Test Method Capabilities Test ...
www.intertek-cb.comChemical Oxygen Demand AWWA Chemical Oxygen Demand (Dichromate Oxygen Demand) of Water ASTM D1252 Chloride - Organic (including Naphtha Cut) ASTM D4929
Biological Wastewater Treatment
www.watertoday.orgwith sufficient dissolved oxygen (DO) concentration (typically 2 mg/l) to effect biodegradation of soluble organic impurities measured as biochemical oxygen demand (BOD5) or chemical oxygen demand (COD). The aeration tank is provided with fine bubble diffused aeration pipework at the bottom to transfer required oxygen to
METHOD 410.4 THE DETERMINATION OF CHEMICAL …
www.caslab.com410.4-2 THE DETERMINATION OF CHEMICAL OXYGEN DEMAND BY SEMI-AUTOMATED COLORIMETRY 1.0 SCOPE AND APPLICATION 1.1 This method covers the determination of chemical oxygen demand (COD) in
2 Municipal Wastewater, Sewage Sludge, and Agriculture
www3.epa.govBiochemical Oxygen Demand 2-50 25 U NA Chemical Oxygen Demand 25-100 70 U NA Total Nitrogen 10-30 20 U <30 Ammonia Nitrogen 0.1-25 10 U NA Nitrate Nitrogen 1-20 8 0.1-1.2 NA Total Phosphorus 5-40 10 <0.02 NA Chloride 50-500 75 55-77 <350 Sodium 50-400 100 71-97 <70 Potassium 10-30 15 4-6 NA Calcium 25-100 50 66-163 NA Magnesium 10-50 20 23-28 NA
Holding Times and Containers - Eurofins Scientific
www.eurofinsus.comBiochemical Oxygen Demand (BOD) SM 5210 B 48 hours; 300 1-L HDPE; 4°C Bromide EPA 300.0; 28 20; 125-mL HDPE 4°C; Carbon Dioxide SM 4500-CO. 2. D 24 hours 250 250-mL amber glass 4°C (no headspace) ... Chemical Oxygen Demand (COD) SM 5220 D(M) 28; 10 4-oz glass jar w/Teflon lid; 4°C Chloride EPA 300.0(M) 28 10;
Water Analysis Handbook - SCP SCIENCE
www.scpscience.comChemical Oxygen Demand (SM# 5220) ..... DigiPREP CUBE Digestion System.....
ZLD-systems - Xzero
www.xzero.seGeneral ZLD-system in a power plant I ett ZLD-system krävs idag alltid ett första steg där de organiska ämnena först separeras från vattnet. Vanligaste metoder: • tank Anaerobic or aerobic digestion, (biological/chemical oxygen demand, BOD,COD)
分析の基礎知識 - aqua-ckc.jp
www.aqua-ckc.jpセントラル科学株式会社 1 本社：東京都文京区本郷3-23-14 TEL/03-3812-9186 FAX/03-3814-7538 URL www.aqua-ckc.jp . COD とは、Chemical Oxygen Demand の略で化学的酸素要求量と呼ばれ、湖沼や海域の環境基準及び
BACKGROUND AND PRINCIPLE - Indian Institute of …
web.iitd.ac.inPage 1 Indian Institute of Technology Delhi Department of Civil Engineering CEL212 Environmental Engineering (Second Semester 2013-14) Experiment 5: Chemical Oxygen Demand
5220 CHEMICAL OXYGEN DEMAND (COD)* 5220 A. …
edgeanalytical.comthe sample volume used; add the same amount of sulfamic acid to the reflux vessel containing the distilled water blank. Reduced inorganic species such as ferrous iron, sulfide, man-ganous manganese, etc., are oxidized quantitatively under the test conditions. For …