nitrogen demandとは 意味・読み方・使い方

To provide a medical waste liquid treatment method which reduces both factors influencing health, such as infectious bacteria contained in a waste liquid, and environmental pollution factors, such as TN (total nitrogen), BOD (biological oxygen demand) and COD (chemical oxygen demand), to complete harmless levels, in medical waste liquid treatment.例文帳に追加

医療廃液処理において、廃液中に含有される感染性細菌類などの健康懸念要因とＴＮ（全窒素量）、ＢＯＤ及びＣＯＤなどの環境汚染要因のいずれをも完全無害化可能レベルまで低減させる医療廃液処理方法を提供すること。 - 特許庁

To provide a photographic waste solution treatment method by which COD (chemical oxygen demand) contribution substances and amonia nitrogen can effectively be reduced to levels satisfying the emission standard to a sewer in a photographic waste solution comprising COD contribution substances and ammonia nitrogen components in high concentrations.例文帳に追加

高濃度のＣＯＤ寄与物質及びアンモニア性窒素成分を含んでいる写真廃液に対して下水道への排出基準を満たすレベルまで効果的にＣＯＤ及びアンモニア性窒素を低減できる写真廃液処理方法を提示すること。 - 特許庁

To provide a method for treating a wastewater containing oxidizable materials such as organic materials, ammonia, hydrazine, capable of drastically reducing chemical oxygen demand (COD), total organic carbon (TOC), and total nitrogen concentration.例文帳に追加

有機物、アンモニア、ヒドラジン等の被酸化性物質を含む排水を、化学的酸素要求量（ＣＯＤ）、全有機炭素（ＴＯＣ）、全窒素濃度を大幅に低減することができる処理方法を提供する。 - 特許庁

To provide a wastewater treatment system stabilizing BOD (biochemical oxygen demand) corresponding to the variation even varying the water level in a first treatment tank, and the quality of treated water by removing nitrogen and phosphorus.例文帳に追加

一次処理槽内の水位が変化しても、その変化に対応してＢＯＤ、窒素およびリンを除去して処理水質の安定化を図れる廃水処理装置を提供する。 - 特許庁

To obtain stable treated water even in the case that the load of raw water fluctuates greatly as the operation control of a nitrogen removal system can be automated and a BOD (biological oxygen demand)/N ratio can be properly controlled.例文帳に追加

窒素除去システムの運転制御を自動化できると共にＢＯＤ／Ｎ比を適正に制御できるので、原水負荷が大きく変動する場合でも安定した処理水を得ることができる。 - 特許庁

To provide a method of treating sludge returning water by which COD (chemical oxygen demand), ammoniacal nitrogen or the like contained in the sludge returning water are removed to prevent their accumulation and the increase of load on a water treating system and the deterioration of treated water quality are suppressed.例文帳に追加

汚泥返流水に含有するＣＯＤ、アンモニア性窒素等を除去して蓄積を防止し、水処理系への負荷の増大や処理水質の低下を抑制するための処理方法を提供する。 - 特許庁

To provide simple and inexpensive discharge equipment for waste water where contact time is short, sufficient sterilization can be performed even under the condition where SS (Suspended Solid), BOD (Biochemical Oxygen Demand) and ammonia nitrogen are high, and adverse influence is not exerted on the ecosystem.例文帳に追加

接触時間が短く、ＳＳ、ＢＯＤやアンモニア性窒素が高い条件でも充分な消毒が行え、生態系へ悪影響を及ぼさず、かつシンプルで安価な排水の放流設備を提供する。 - 特許庁

To provide a method for cleaning environmental water, which reduces concentrations of SS (suspended solid), entire nitrogen and entire phosphorus, as well as COD (chemical oxygen demand) and BOD (biological oxygen demand), particularly stably reduces COD, important as an index of the contamination degree of environmental water, for a long period of time.例文帳に追加

環境水のＳＳ（浮遊性懸濁物），全窒素および全リンの濃度の低減化のみならず、ＣＯＤ（化学的酸素消費量）の値およびＢＯＤ(生物化学的酸素消費量)の値を低減化し、特に環境水の汚染の指標として重要なＣＯＤ（化学的酸素消費量）の値を、長期間にわたって安定して低減することができる水質浄化方法を提供する。 - 特許庁