http://swj.sz.gov.cn/ydmh/ywzsk/swrzl/content/post_8669833.html WebDec 16, 2024 · 何為bod與cod? bod(生化需氧量):是指在有氧的條件下,水中微生物分解有機物的生物化學過程中所需溶解氧的質量濃度。為了使bod檢測數值有可比性,一 …
BOD・CODの下げ方がわからない!違いを知り効率良く取り除こう
WebNov 10, 2015 · The chemical oxygen demand (COD) test is commonly used to indirectly measure the amount of organic compounds in water. Most applications of COD determine the amount of organic pollutants found in surface water (e.g. lakes and rivers) or wastewater, making COD a useful measure of water quality. It is expressed in milligrams … WebDec 11, 2024 · 二、BOD与COD方法、仪器的内在缺陷. 1、BOD方法、仪器内在缺陷. BOD测定方法决定了,实际使用水样只能消耗一部分DO,对应有机物浓度范围大约是几 … standing orders house of commons
什么是BOD、COD?
WebSep 26, 2024 · COD (Chemical Oxygen Demand – nhu cầu oxy hóa học) là lượng oxy cần thiết để oxy hóa các hợp chất hóa học trong nước bao gồm cả vô cơ và hữu cơ. Như vậy, COD là lượng oxy cần để oxy hóa toàn bộ các chất hóa học trong nước, trong khi đó BOD là lượng oxy cần thiết để ... WebApr 6, 2024 · BOD or Biochemical Oxygen Demand is the measure of the amount of oxygen utilized by aerobic microbes to degrade the organic waste present in water. It is calculated over five days at a specific temperature of 20°C. BOD of water is essentially important for understanding the polluting potential of the water. The more the BOD levels … WebJan 21, 2024 · まとめ. BODとCODは放流基準となっているので、適切に処理することが求められます。. 低減するためには廃水の解析を行い、何が原因でBODとCODが高くなっているのか確認することが大切です。. 水処理の専門業者であるネクストリーにご相談いただけ … standing orders in primary care