氧化沟工艺在水处理中的应用与发展毕业论文外文翻译

氧化沟工艺在水处理中的应用与发展毕业论文外文翻译内容摘要：

izes problem and solution methods of the ditch esse. Though the Carrousel oxidizes the ditch has a water fluid matter well, the anti pounds at the burthen ability strong, divided by the phosphorus take off the nitrogen efficiency. But, in physically of movement process, still exsits a series of problem. Dirty mire inflation problem When discard the aquatic carbohydrate more, the N, P contains the unbalance of deal, the pH value is low, oxidizing the dirty mire in inside in ditch carries high, fuse the oxygen density the shortage, line up the mire not etc. causes easily dirty mire in germ in form in silk inflation。 Not the dirty mire in germ in form in silk inflation takes place primarily at the waste water water temperature is lower but the dirty mire carries higher microbial burthen is high, the germs absorbed the large quantity nourishment material, is low because of the temperature, metabolism the speed is slower, accumulating the rises large quantity is high to glue sexual and many sugar materials, making the surface of the live and dirty mire adhere to the water to increase consumedly, SVI the value is very high, being the dirty mire inflation. Cause that aim at the dirty mire inflation, can adopt the different counterplan:From the anoxia, water temperature high result in of, can enlargement tolerance or lower into the water measures to alleviate burthen, or the adequacy lowers the MLSS( control dirty mire reflux measure), making need the oxygen measures decrease。 If the dirty mire carries high, can increase MLSS, to adjust the burthen, necessity the hour can stop into the water, stuffy a period of time。 Can pass the hurl add the nitrogen fertilizer, phosphorus fatty, adjust the admixture nourishment in the liquid material equilibrium( BOD5:N:P=100:5:1)。 The value of pH over low, can throw to add the lime regulate。 Bleach the powder with the liquid chlorin( press to fuck % of the dirty mire~% the hurl adds), can repress the silk form germ breed, controling the dirty mire in binative water inflation[11]. Foam problem Because entering to take the grease of large quantity in the water, handling system can39。 t pletely and availably its obviation, parts of greases enriches to gather in in the dirty mire, through turn to brush the oxygen agitation, creation large quantity foam。 The mire is partial to long, the dirty mire is aging, and also easy creation to pour the water or divided by with the surface the of do away with the foam, in mon use divided by the an anism oil, kerosene, the oil of silicon, throw deal as ~ mgs/ to increase dirty mire in pond in spirit in density or adequacies let up the tolerance of , also can control the foam creation contain the live material in surface in the waste water more, separate with the foam easily and in advance method or other methods do away can consider to increase to establish a set of divideding by the oil device enhance most importantly the headwaters manage, reducing to contain the oil over the high waste water and other poisonous waste water of into[12]. Float the problem on the dirty mire When contain in the waste water the oil measures big, whole system mire quality bee light, can39。 t like to control very much in operate process its at two sink the pond stop over time, resulting in the anoxia easily, producing the corrupt and dirty mire ascend to float。 When spirit time over long, take place in pond the high degree nitric turnthe function, making nitrate density high, at two sink the versa nitric in easy occurrence in pond turn the function, creation nitrogen spirit, make dirty mire ascend float。 Moreover, contain the oil in the waste water? Take place the dirty mire ascend after floating should pause enter water, broke off or dirty mire in clearance, judge the clear reason, adjust the dirty mire sinks to decline the sex bad, can throw to add of oagulate or sloth materials, the improvement precipitates the sex。 Such as enter the water carries big let up into the water measures or the enlargement reflux measures。 Such as the dirty mire grain small lower the spirit machine turn soon。 If discovers versa nitric turning, should let up the tolerance , enlarge the reflux or row the mire measures。 If discover the dirty mire is corrupt, should enlargement tolerance, the clearance accumulates the mire, and try the ameliorative pond internal water dint term[12]. Current velocity is not all and the dirty mire sinks to accumulate the problem In Carrousel oxidize ditch, for acquiring its special admixture with handles result, mix with liquid mu。