| 单词 | 需氧量 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 | 需氧量 noun —oxygen demand nExamples:化学需氧量—chemical oxygen demand (an environmental indicator) See also:氧—oxygen (chemistry)
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渠 務署可能會突擊進行“ 重新隨意抽樣” ，以核實所提交的化學需氧量值 能否足以反映實況。 legco.gov.hk | DSD may conduct surprise 're-grab' to [...] verify whether the COD values submitted [...]are sufficiently representative. legco.gov.hk |
例如，在徵收附加費時，當局只是根據化 學 需氧量 （ CO D 值）來計算不 同行業的收費，而不會理會有沒有其他化學污染物及評估其含量。 legco.gov.hk | In levying the surcharge, the authorities only calculate the surcharge for different trades based on the COD values. legco.gov.hk |
在現法例㆘，經營者亦可以向排水事務監督提供 證據，申請覆查所排放的污水的化學 需氧量 值 或 污水比率。 legco.gov.hk | Under the present legislation, operators can also apply for a review of the COD value or the discharge factor applicable to their effluent by producing evidence to the Drainage Authority. legco.gov.hk |
餐館業普遍歡迎調低污水附加 費的建議，但認為收費率應進一步調低，而當局亦應制訂一個清晰、 具透明度的機制，用以定出基本化學 需氧量 數 值。 legco.gov.hk | A clear and transparent mechanism in deriving the generic COD value should also be put in place. legco.gov.hk |
業內個別機構如能證明其排放污水的濃度低於訂明的 化學需氧量數值，可按較低收費率繳交污水附加費。 legco.gov.hk | Individual members of a trade are entitled to a lower TES rate if they can demonstrate that the effluent they discharge is weaker than the prescribed COD value. legco.gov.hk |
目 前由屯 門 區 流 入 河 流 的 污染物 約 相 等於每天 800 千 克 生 化 需 氧 量 。 legco.gov.hk | The existing untreated pollution load discharged to rivers in the Tuen Mun area is estimated to be about 800 kg of BOD5 per day. legco.gov.hk |
事實上，環保署在年初已經公開表示已完成餐館業污水濃度的評估，結 果顯示每立方米的化學需氧量顯然較現時收費基準的 2 000 個 COD 為 [...] 低，相 信附加費應該可以下調。 legco.gov.hk | In fact, the Environmental Protection Department (EPD) stated publicly at the beginning of this year that it had completed an assessment of the effluent quality of the catering [...] industry and the results showed that [...] the Chemical Oxygen Demand (COD) per cu m was [...]obviously less than 2 000 COD, which [...]is the existing benchmark for the surcharge, and that it believed there was room to lower the surcharge. legco.gov.hk |
排污計劃第 I 階 段 的 昂船洲 污水處理廠把 污水作化學 處 理，這 項 工作 ㆒ 直運作 良好， 可 除去 83%懸浮固 體和 74%按 生 化 需 氧量計算 的污染物( 按 過去的預 測 ， 可 除去的懸浮固 體和按 生 化 需 氧量計算 的污染物分別是 70% 和 55%)，相等 於㆓級 生 物處理廠 90%的成效。 legco.gov.hk | The first stage of the Stonecutters Island Treatment works provides chemical treatment to the sewage. The process has been operating very well, [...] removing 83% of suspended [...] solids and 74% of BOD, which is equivalent to 90% of the efficiency of a biological secondary treatment plant (it was predicted that it would remove 70% of suspended solids and 55% of BOD). legco.gov.hk |
該27個行業的化學需氧量數值亦已因應污水檢測結果而 有所修訂。 legco.gov.hk | The COD values of those 27 trades are also amended as a result of the Survey. legco.gov.hk |
若該經核准的化學需氧量值是 低於該商戶所屬行業訂定一 般化學需氧量值，則渠務署會用以計算新的工商業污水附加費收費 率，有關商戶須按此收費率繳納污水附加費，為期一年。 legco.gov.hk | If the approved COD values are lower than the generic values, a new TES rate will be derived from the COD values and applied to the relevant TES account(s) for one year. legco.gov.hk |
但是必须要知道的是：氨对水生生物有毒，生 化 需氧量 (BOD5) 高 ， 而 DERMASCAL® [...] ASB new, DERMASCAL® F 和DERMASCAL® CD 则相对易于发 生生物降解。 tfl.com | But it has to be realised that [...] ammonia is an aquatic toxin and has a high [...] biological oxygen demand (BOD5) whereas [...]DERMASCAL® ASB new, DERMASCAL®F and DERMASCAL® [...]CD are relatively easy biodegradable. tfl.com |
化學需氧量重估 程序的詳情載於附錄II。 legco.gov.hk | Details of the COD reassessment procedures are in Appendix II. legco.gov.hk |
2009年，因关闭了美国新泽西州南不伦瑞克(South Brunswick)生产基地，瓦克的化学需氧量 ( C O D) 明显减少。 reports.wacker.com | The chemical oxygen demand (COD) fell significantly in 2009 due to the closure of our site in South Brunswick (New Jersey, USA). reports.wacker.com |
視乎測量每個相關 [...] 行業的污水的結果，當局會先行檢討所有需要繳付污水附加費的行業 的基本化學需氧量，然 後才決定有否需要調整污水附加費。 legco.gov.hk | Subject to the outcome of the trade specific surveys, a [...] review of the generic COD values of all TES trades would be carried out [...] before deciding the need to adjust the TES rates. legco.gov.hk |
據政府當局表示，擬議程序不但會大幅減輕重估化 學 需氧量 數 值 的成 本，更可在收集樣本時盡量避免對商戶的業務運作造成干擾。 legco.gov.hk | According to the Administration, the proposed procedures would significantly reduce the cost of reassessing COD values and minimize the disturbance caused to the trades' business during the collection of samples. legco.gov.hk |
厌氧处理的原理是在无氧环境中运用厌氧菌（污泥）将有机污染物或者COD（化 学 需氧量 ） 转 化为沼气。 biothane.com | The principle of anaerobic treatment is the utilization of anaerobic [...] bacteria (biomass) to convert organic pollutants or COD [...] (Chemical Oxygen Demand) into biogas in an oxygen free environment. biothane.com |
污 水將經 3 級 處 理 及 殺菌， [...] 除去污 水當中 95%以上的生化 需 氧 量、懸浮固體 及 氨氮， 以及 99.99%以上的 [...]微 生物。 legco.gov.hk | After tertiary treatment and disinfection, [...] Biochemical Oxygen Demand, suspended solids [...]and ammoniacal nitrogen in sewage will [...]be reduced by more than 95% and microorganisms will be removed by over 99.99%. legco.gov.hk |
政府上年度接獲 639 宗對排污附加費的上 訴，其中 94%涉及污水一般化學需氧量，結果 544 宗申請上訴得直。 legco.gov.hk | Last year, the Government received 639 cases of appeal against the TES, 94% of which involved the generic COD value and 544 of such cases were substantiated, representing a success rate of as high as 85%. legco.gov.hk |
整體而言，現時的排污情況是化學需 氧量每立方米約 3600 克。 legco.gov.hk | On the whole, the current position of the effluent discharged is that we have a COD value of 3600 grams per cubic metre. legco.gov.hk |
亦 有人質疑是否應採用一般化學需氧量 數 值 ，代表某獨特運作方式所排 出廢水的平均濃度，而這種濃度是可因運作規模而異的。 legco.gov.hk | This has created a disincentive to appeal. There are also questions on the propriety of using a generic COD value to represent the average strength of wastewater discharged by a particular type of operation which may vary according to the scale of operation. legco.gov.hk |
悬浮固体和化学需氧量的监 测值暂时超标。 reports.wacker.com | The monitored threshold values for suspended solids (SS) [...] and chemical oxygen demand (COD) were temporarily [...]exceeded. reports.wacker.com |
生化需氧量（BO D)是表示水中的有氧微生物消耗溶解氧的数量的一个化学过程。 velp.com | Biochemical Oxygen Demand, commonly known as [...] BOD analysis, is a chemical procedure for determining the amount of dissolved [...]oxygen consumed by aerobic biological microorganisms in water. velp.com |
BOD设备是根据国家标准设计的测试水中或者污水中生 物 需氧量 的 仪 器。 velp.com | BOD equipment is designed for [...] Biochemical Oxygen Demand (BOD analysis) [...]in water and wastewater samples according to official organizations. velp.com |
現 時 的生化需 氧 量及懸浮固體去除率分別為 72%及 81%， 遠 高 於 設 計 時 所 訂 下的 35%及 70%標 準 。 devb.gov.hk | The BOD and Suspended Solids (SS) removal rates are currently averaging 72% and 81%, which are significantly higher than the design values of 35% and 70% respectively. devb.gov.hk |
在生化需氧量上自 动得出最有效的准确结果。 velp.com | The most convenient way to get reliable results automatically on the Biochemical Oxygen Demand. velp.com |
例如，某一污水处理厂，选用上述计算例题中的罗茨鼓风机，根据环境温度变化，计算出鼓风机的实际供氧量，其一年的变化规律在实际运行过程中，由于进水量、水质、水温、MLSS等参数的变化，系 统 需氧量 ( S O R) 也会发生变化在夏季，水温较高，曝气 池 需氧量 ( S O R) 增大，但鼓风机的供氧量(FOR)在减少，这是设计时考 虑 需氧量 的 最 不利工况点，此时， 供 氧量 、 需氧量 基 本相当;在冬季，水温降低，曝气 池 需氧量 ( S O R) 减少，但鼓风机的供氧量(FOR)增大，此时， 供 氧量 较 需氧量 大 出 许多。 lailei.cn | For example, a sewage treatment plant, choose the calculation above the ROM watts sample blower, according to the environment temperature change,Calculate the actual blower FOR oxygen amount, the change rule of one year in actual operation process, because of water, water quality, water temperature into, MLSS [...] parameters of the change, [...] the system oxygen demand (SOR) will also be changing in the summer, high water temperature, aeration pool oxygen demand (SOR) increase, but of the blast blower (FOR) in oxygen FOR reduced, it is designed FOR oxygen demand the most unfavorable conditions point, at this time, FOR oxygen amount, oxygen demand basic quite; In winter, the water temperature is reduced, aeration pool oxygen demand (SOR) reduce,But of the blast blower (FOR) increase oxygen FOR, at this time, to be measured FOR oxygen is much oxygen demand. lailei.cn |
(c) 采矿羽流对水体生态系统的影响(营养物添加、浑浊度增加、重金属毒 性、需氧量增加) daccess-ods.un.org | (c) Mining plume impacts on the water column ecosystems (nutrient enrichment, enhanced turbidity, heavy-metal [...] toxicity, enhanced oxygen demand) daccess-ods.un.org |
而在廢水處理方面，我們採用化學混凝法、廢水分流回等方法，降低廢水化 學 需氧量 ( C O D) 及重金屬。 unimicron.com | In terms of wastewater treatment, we adopt the chemical [...] coagulation and diffluent methods to lower/reduce [...] the chemical oxygen demand (COD) and heavy metal [...]content in wastewater. unimicron.com |
风机选型时应关注鼓风机空气流量因素在计算污水处理 的 需氧量 时 ， 其结果为标准状态下 所 需氧 的 质 量流量qm(kg/min)，再将其换算成标准状态下所需空气的容积流量qv1(m3/min)，如果鼓风机的使用状态不是标准状态，例如在高原地区使用，则空气密度、含湿量会发生变化，鼓风机所供应的空气容积流量与标准状态是相同的，而所供空气的质量流量将减少，有可能导致供氧量不足。 lailei.cn | Special attention should be focused on fan [...] blower air flow in the calculation of the factors of sewage disposal of oxygen demand, the results for [...]the standard for the quality of the state oxygen flow qm (kg/min), then the conversion [...]into standard condition the volume of air is required qv1 flow (m3 / min), if the use of blower is not a standard state state, for example in plateau area to use, the air density, moisture content can change and the supply air blower volume flow with the state standards are the same, and for the quality of the air flow will be reduced and could cause for the lack of oxygen. lailei.cn |
与种菌共同孵化两星期，继而暴露于本地污水处理厂的种菌环境下，供试品的细 菌 需氧量 （ BO D）仍被确定为零。 cn.lubrizol.com | The Bacterial Oxygen Demand (BOD) for the test materials was determined to be zero following exposure to seed bacteria from a local wastewater treatment plant after being incubated with the seed bacteria for two weeks. lubrizol.com |
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