水力负荷 meaning in English
hydraulic load
Examples
- Though the maximum of removal ratio of cod can reach 71 % , the removal ratio of cod of water discharge has been under 60 % , when hydraulic load surpasses 48 . 6mg / l - d
虽然最高去除率可达71 ，但当水力负荷人于48 . 6ml l ? d时，出水cod去除率已低于60 。 - In summer , when hydraulic load reaches 100ml / l - d , the removal ratio of bod5 still over 80 % , the removal ratio of bod5 also can reach 80 % in winter
夏季当bod _ 5进水浓度为250mg l左右，水力负荷达到100ml l ? d时，去除率仍然稳定在80左右，冬季去除率也基本稳定在80以上。 - In summer , when hydraulic load ranges from 7ml / l - d to 60ml / l - d , the change of the water quality of water discharge is very small , and the removal ratio is over 70 %
夏季cod进水浓度为1500mg l左右，水力负荷在7 60ml l ? d范围内逐渐增加时，出水水质变化不大，去除率基本稳定在70以上。 - The height of media 、 the ratio of gas to liquid 、 hydraulic loading 、 the organic and ammonia loading of influent are the key factors influence the performance of one - stage aerobic baf . the conclusions of the experiment are as following : the best height to remove the organic matter and ammonia is at 60cm 、 120cm from the influent side respectively . the best ratio of gas to liquid is 3 : 1 4 : 1 ; the organic and ammonia loading of influent have litlle influence on the performance of one - stage aerobic baf when the concentration are low ; whe the ratio of gas to liquid is 3 : 1 , the ammonia loading is blow 0 . 87kgnh _ 4 ~ + - n / m ~ 3 . d , the enfluent concentration of ammonia is blow 5mg / l which satisfies the water reuse standard ; at different organic loadings , the removal of organic matter keeps 35 % 45 % . hypothermia is unfavourable to nitrification for one - stage aerobic baf to removel ammonia , the influent concentration of ammonia can ’ t satisfy the water reuse standard
试验表明:对有机物的去除主要发生在进水端60cm内,对氨氮的去除主要发生在进水端120cm内;曝气生物滤池运行的最佳气水比为3 : 1 4 : 1 ;在进水有机物和氨氮浓度比较小时,水力负荷对其去除率影响不大;在气水比为3 : 1 ,进水氨氮负荷小于0 . 87kgnh4 + - n / m3 (滤料) ? d时,出水氨氮小于5mg / l ,满足回用水的要求;在不同有机负荷下,有机物去除率保持在35 % 45 % 。 - Putting the potassium permanganate into the filter can improve its effect , the removal of organics and ammonia is increased , the influent concentration can satisfy the water reuse standard . but the turbidity of influent is unsatisfactory . the c / n ratio is the key factor to influence the nitrogen - removal of the anoxic / aerobic two - stage baf when the reflux ratio 、 hydraulic loading and the ratio of gas to liquid in aerobic filter are fixed . the anoxic / aerobic two - stage baf has a good removal of organics at different c / n ratio when the reflux ratio is 2 , hydraulic loading is 2 . 55m ~ 3 / m ~ 2 ? h and the ratio of gas to liquid in aerobic filter is 3 : 1 . the influent concentration of organics is blow 7mg / l . from the beginning to 30cm of the anoxic filter , the removal of the organics is significant ; as the c / n ratio increasing , the influent concentration of ammonia is decreasing . when the c / n ratio is 3 . 60 , the enfluent concentration of ammonia is 3 . 05mg / l which satisfies the water reuse standard . when the c / n ration is less than 3 . 60 , because of the imperfection
回流比为2 : 1 ,水力负荷为2 . 55m3 / m2 ? h ,好氧柱气水比为3 : 1时试验表明:不同的c / n ( 1 . 05 7 . 45 )下,两级曝气生物滤池对有机物有很好的去除作用,出水有机物浓度小于7mg / l ,其中在缺氧柱进水端30cm内对有机物的去除最为明显;随着c / n的增加,系统出水氨氮浓度降低,当c / n为3 . 60时,出水氨氮浓度降到3 . 05mg / l ,已经满足回用水的氨氮标准; c / n < 3 . 60时,因为缺氧柱的不完全反硝化,体系中硝酸盐氮和亚硝酸盐氮发生积累影响了好氧柱的硝化反应使氨氮降解效果较差;系统对总氮的去除随着c / n的增加而增加,当c / n为3 . 60时,出水总氮已经降到11 . 18mg / l ,满足回用水的要求。