外文翻译 食品工业污水处理(9)

外文翻译 食品工业污水处理 FOOD INDUSTRY WASTEWATER TREATMENT 食用油生产污水 磷脂 薄层色谱法 污水净化 污水处理

单可行的方法。具有很多特别的优点：

— it can easily be conducted and its reactant supply is not expensive;

— the reactant (sodium hypochlorite) is available in Kalush town where it is produced as a byproduct of the production process;

— the reactant expenditure is not substantial; quantities of formed wastes are not large (only oxidised, disinfected organic polluters are produced);

— it can be used after enhancement of existing purification facilities; — wastes can be used as an effective organic and mineral fertiliser.

-它可以很容易的进行而且反应物便宜；

-反应物(次氯酸钠)是可在卡卢什小镇作为生产过程中产生的副产品；

-反应物开支不大；加工废物的数量也不大（只有氧化废物、已消毒的有机污染物产生）； -可以用来在提高现有净化设备；

-垃圾可以作为一种有效的有机、矿物肥料。

Experiments were conducted using samples of wastewater, the aim of which was its purification from organic substances with the usage of active chlorine which was injected as part of sodium hypochlorite. To the initial wastewater (V = 100 ml) possessing PH value of 2.3, sodium hypochlorite had been being added until the colouring changed from dark-brown to stramineous, necessary quantity V (NaClO) = 9.2 ml with concentration С (NaClO) = 10 % (vol.). Also, it is observed that flakes are formed as a result of the process taking place on the surface of the mix. These flakes subsequently deposit to the bottom. When sodium hypochlorite is added to the water which was pre-neutralised using calcium carbonate, the pH reaches the necessary neutral value.

实验研究了污水样品，目的是用含有一部分次氯酸钠的次氯酸把有机物中提纯。最初的污水（V = 100毫升），PH值为2.3，添加次氯酸钠直到颜色从麦秆色到深棕色，需要次氯酸钠的体积9.2 ml，次氯酸钠的浓度=10% （体积分数）。同时，观察混合表面产生的鳞片。鳞片随后沉到底部。当次添加氯酸钠到预先用碳酸钙中和的水中，PH到达所需要的中性值。

Upon having conducted the neutralisation and upon having achieved the necessary pH of wastewater, as well as upon having conducted its clarification as per abovementioned description, we proceeded to the next step: separation of the formed deposition with further identification of substances, specifically phospholipids which are part of the fats’ composition and which might either subside into deposits or remain in the clarified water layer. The subject detection of phospholipids in the deposition was made using a chromatographic analysis method. The filtered deposition received as a result of the abovementioned was dissolved in 2ml of ethyl alcohol and applied (qty = 50 mcL) onto the plate in right lower angle; then air-dries and inserted into the chromatographic chamber.

中和后到达所需要的中性值的水，按上述澄清，继续下一步：分离形成的沉积物质，特别是沉淀或仍残留在上层水中的磷脂。观察磷脂沉淀主要是用的色谱分析方法。将收集到的沉淀溶解到2毫升酒精中，涂抹（数量=50mcl）在感光片右下角；然后风干、插入到色谱仪内。

Therefore, upon completion of purification using sodium hypochlorite and upon having conducted a chromatographic analysis of phospholipids in the received deposition, a conclusion could be made that fat content of the deposition is similar to the fat content of output wastewater. This confirms the efficiency of the proposed technology

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