食品工業(yè)污水處理外文翻譯

1、<p>　　FOOD INDUSTRY WASTEWATER TREATMENT</p><p><b>　　食品工業(yè)污水處理</b></p><p>　　Abstract The purpose of the present study is to assess the condition of wastewaters pertaining to the

2、production of cooking oil and to develop an effective and low-cost method for purification of wastewaters and utilisation of other oil production-related wastes which would comply with environmental safety requirements.

3、It was made a quality assessment in terms of content of polluting substances of cooking oil-production wastewater. For identification of fat content (phospholipids) of wastewater</p><p>　　摘要 本研究的目的是評(píng)估生產(chǎn)食用油污水

4、的情況和制定一個(gè)有效的、低成本的凈化方法，在遵守環(huán)保安全要求的情況下利用其他含油污水和含油廢棄物，旨在按照質(zhì)量來(lái)評(píng)價(jià)烹調(diào)產(chǎn)生的油類(lèi)污水。其中薄層色譜法應(yīng)用于識(shí)別脂肪含量(磷脂)的污水。在該方法的基礎(chǔ)上，對(duì)污水的凈化是一個(gè)初步澄清分離污水中的碳酸鈣，隨后用次氯酸鈉澄清水，再添加中和劑的過(guò)程。本文所提出的方法可以達(dá)到一個(gè)高度凈化污水的目的，具有高效、低成本的特點(diǎn)。</p><p>　　Keywords: Cookin

5、g oil production wastewater; phospholipids; thin-layer chromatography; wastewater purification; wastewater treatment</p><p>　　關(guān)鍵詞:食用油生產(chǎn)污水；磷脂；薄層色譜法；污水凈化；污水處理</p><p>　　One of the main tendencies o

6、f development of food industry in the 21st century is the creation of useful and healthy products, the so-called functional food products. A specific feature of such products is that they contain ingredients which, besid

7、es their traditional nutrient and energys upplying function, also possess a range of specific physiological functions which help human organism to combat negative influence of civilisation.</p><p>　　創(chuàng)造這種有用的、

8、健康的叫做功能性食品的產(chǎn)品在二十一世紀(jì)成為一種食品工業(yè)上的主要發(fā)展趨勢(shì)。這種產(chǎn)品的特征是包含了某些材料，除了具有提供傳統(tǒng)養(yǎng)分和能量的功能，還具有一系列獨(dú)特的生理功能，有助于人體對(duì)抗負(fù)面影響。</p><p>　　Food industry is one of the most resource-demanding branches of industry, therefore it is especially i

9、mportant to ensure rational usage of raw materials. In the processing sub-branches of agricultural complex where the net value of products is comprised of material and energy expenditures, it is increasingly crucial to d

10、ecrease the consumption of materials. This can be achieved by dint of wide implementation of non-waste technologies, complex usage of raw materials and secondary(recycled) resour</p><p>　　食品企業(yè)是對(duì)資源要求最高的產(chǎn)業(yè)結(jié)構(gòu)之一

11、，因此確保原材料的合理使用顯得尤為重要。農(nóng)業(yè)加工行業(yè)的凈價(jià)值由原材料和能量支出決定，而且越來(lái)越多的決定于原材料的消耗。這就可以實(shí)現(xiàn)無(wú)廢物生產(chǎn)技術(shù)、反復(fù)使用的原材料技術(shù)和使用二次(再生)資源技術(shù)的聯(lián)合工業(yè)。食品工廠(chǎng)在產(chǎn)品生產(chǎn)和去除環(huán)境中廢物的過(guò)程中的主要問(wèn)題的另一個(gè)重要方面是確保生態(tài)安全。其中一個(gè)最重要的問(wèn)題是企業(yè)面臨的食品工業(yè)污水處理的問(wèn)題。在烏克蘭, 食品生產(chǎn)企業(yè)主要分布在有豐富水體網(wǎng)絡(luò)的西部和西南部。這意味著控制排放的污水要比平時(shí)更

12、嚴(yán)格地執(zhí)行來(lái)避免食品生產(chǎn)公司在這些地區(qū)污染水庫(kù)。</p><p>　　Ukraine is one of the five main world producers of sunflower. Yearly output of sunflower amounted to more than 4 million tonnes in this year. Only Argentine (6.4 m tonnes) p

13、roduced more.</p><p>　　烏克蘭是世界五個(gè)主要向日葵生產(chǎn)地之一。今年向日葵的年產(chǎn)量達(dá)400萬(wàn)多噸。比阿根廷(6.4萬(wàn)噸)所產(chǎn)生的多得多。</p><p>　　In the latest years, Ukrainian vegetable oil market has become increasingly more integrated into the globa

14、l vegetable oil market. This is due to the fact that processes of international division of labour get deepened and Ukraine is becoming one of the world’s leading producers of sunflower seeds, sunflower oil, and groats.&

15、lt;/p><p>　　最近幾年，烏克蘭的植物油市場(chǎng)日益融入全球植物油市場(chǎng)。這是由于這樣的事實(shí)，烏克蘭在國(guó)際分工的過(guò)程中得到深化，已經(jīng)成為世界領(lǐng)先的向日葵花種子、向日葵花油和燕麥的生產(chǎn)地。</p><p>　　Therefore, we are facing a crucially important task which foresees a more detailed examinatio

16、n of peculiarities of such valuable product as sunflower oil, bringing this production closer to the ecologically clean technologies whilst minimising the wastes of production.</p><p>　　因此,我們正在面臨著一個(gè)重要的任務(wù), 更詳

17、盡地預(yù)測(cè)如此有價(jià)值的向日葵花油的產(chǎn)品特性，促進(jìn)清潔生產(chǎn)同時(shí)減少產(chǎn)生的廢料。</p><p>　　Sunflower oil, alongside other vegetable oils, possesses a number of useful properties which make its consumption a lot more preferable than consumption of anim

18、al fat.</p><p>　　向日葵花油與其他植物油一樣，擁有許多有益的特性，比很多動(dòng)物脂肪消耗的更多。</p><p>　　With the purpose of further study of ecological influence of production of the cooking oil, assessment of the condition of sewage

19、water, we shall examine the technology of oil production. </p><p>　　我們進(jìn)一步對(duì)生產(chǎn)食用油產(chǎn)生的生態(tài)影響的研究是為了評(píng)估污水情況,檢查技術(shù)食用油的生產(chǎn)工藝。</p><p>　　Extraction method is applied owing to the solubility of fat in organic e

20、ther, hexane, and pentane. The fat which is produced in this manner must be cleansed of solvents and the fat is to be refined.</p><p>　　提取方法是應(yīng)用于溶解性脂肪如有機(jī)醚、環(huán)己烷和戊烷。這樣產(chǎn)生的脂肪必須用溶劑清洗然后精煉濃縮。</p><p>　　Th

21、e oil produced by way of pressing may be refined or not refined. But given the increased usage of chemicals in the agriculture and the deterioration of the environment, the raw materials as well as the oil may contain pe

22、sticides, toxic metals, mycotoxins, and carcinogenic benzopyrene. Because of this, scientists and specialists deem it that all kinds of oil must necessarily be subject to refinement whilst raw material is to be subject t

23、o sanitary and hygienic control, verifying the presence or</p><p>　　通過(guò)壓榨產(chǎn)生的油可能是精煉的，也有可能不是。但是使用化學(xué)物質(zhì)會(huì)使農(nóng)業(yè)和環(huán)境惡化，原材料以及油中可能含有殺蟲(chóng)劑、有毒金屬、毒素、致癌苯并芘。因此，科學(xué)家們和專(zhuān)家認(rèn)為這種油必須在安全和衛(wèi)生的控制下精制提純，核實(shí)不存在這些物質(zhì)。</p><p>　　Oil r

24、efinement leads to full or partial removal of harmful substances. Depending upon the depth of purification, the following types of oil are produced:</p><p>　　食用油的提純導(dǎo)致全部或部分的有害物質(zhì)的被去除。取決于純化的深度，以下類(lèi)型食用油被生產(chǎn):</p

25、><p>　　? non-refined (cleaned from mechanical admixtures)</p><p>　　? hydrated (cleaned from phosphatides)</p><p>　　? refined non-deodorised (cleaned from phosphatides, free fat acids,

26、colouring agents)</p><p>　　? refined deodorised (refined oil cleaned from aromatic and flavouring substances, pesticides and carcinogens).</p><p>　　After the non-refined oil is separated from th

27、e raw material, it is to be filtered or left to settle, so that peelings, particles of seed coats, pulp etc can be removed. The non-refined oil possesses colour, flavour, and smell which are peculiar to its mother raw ma

28、terial as well as all the corresponding substances (including the biologically active ones) which are native to it.</p><p>　　?未精煉的(來(lái)自機(jī)械壓榨)</p><p>　　?水合物(來(lái)自磷脂)</p><p>　　?精煉有臭味的(來(lái)自磷脂，

29、游離脂肪酸、著色劑)</p><p>　　?精煉無(wú)臭味的(從香料和芳香物質(zhì),從殺蟲(chóng)劑和致癌物質(zhì)清洗出來(lái)的精煉油)。</p><p>　　未精煉的油從原料分離后，是過(guò)濾或沉淀下來(lái)，以便種皮,胚、果肉等可以去掉。有臭味的油具有的顏色、氣味、味道都是獨(dú)一無(wú)二的,其原料以及所有類(lèi)似的物質(zhì)(包括生物活性物)都是土生土長(zhǎng)的。</p><p>　　Most of Ukrainia

30、n oil-producing enterprises do not provide for purification of industrial wastewaters, dumping thousands of tonnes of polluting substances into the water bodies. The purification facilities which exist in some places wer

31、e constructed a long time ago and had been designed with regard to the requirements of domestic wastewater purification. Such facilities, at best, partially decrease the value of general BOD (biological oxygen demand) or

32、 simply let the wastewater flow through; whi</p><p>　　烏克蘭大部分的食用油生產(chǎn)企業(yè)不能凈化工業(yè)污水，排放成千上萬(wàn)噸的污染物質(zhì)進(jìn)入水體。一些存在凈化設(shè)備的地方是很久以前建立的而且是為生活污水凈化而設(shè)計(jì)的。這些設(shè)施即使在最好的情況下也只能減少部分BOD（生物需氧量）值或者僅僅是讓水通過(guò)；最壞的情況是這些污水在排入水體前腐蝕這些設(shè)備并增強(qiáng)毒性。這些工業(yè)污水大多受到

33、污染，特別是有機(jī)物的污染；當(dāng)前的凈化設(shè)備不能達(dá)到衛(wèi)生要求。這些受食用油生產(chǎn)企業(yè)產(chǎn)生的有機(jī)物污染的地表水成為重大的生態(tài)危機(jī)。這些物質(zhì)排放到水體中促進(jìn)了腐爛過(guò)程，病原菌污染了水體，導(dǎo)致水惡臭并且對(duì)動(dòng)植物產(chǎn)生影響。對(duì)于許多企業(yè)，污水凈化成為一個(gè)嚴(yán)峻的問(wèn)題。</p><p>　　The purpose of the present study is to assess the condition of wastewate

34、rs pertaining to the production of cooking oil and to develop an effective and low-cost method for purification of wastewaters and utilisation of other oil production-related wastes which would comply with environmental

35、safety requirements.</p><p>　　本研究的目的是評(píng)估食用油工業(yè)產(chǎn)生的污水情況和開(kāi)發(fā)一種高效、低成本的方法來(lái)利用市面上其他油類(lèi)污水，并且達(dá)到環(huán)保安全要求。</p><p>　　As basis of our study, we have chosen the wastewaters dumped by those Ukrainian vegetable oil p

36、roducing enterprises whose purification facilities are all but unused due to their technical deficiency. As a result of this, the polluted wastewaters, which do not correspond to the requirements of the Law of Ukraine “A

37、bout protection of environment” and “Regulations for Protection of Surface Waters from Wastewater Pollution”, are dumped into open water bodies. As of today, the main problem of such fa</p><p>　　以研究為基礎(chǔ)，我們通過(guò)烏

38、克蘭的植物油生產(chǎn)企業(yè)選擇廢棄的污水，那些企業(yè)的凈化設(shè)施由于工藝缺陷幾乎不用。因此，不符合烏克蘭“關(guān)于保護(hù)環(huán)境”和“保護(hù)地表水污水污染條例”法律要求的污染污水排入開(kāi)放的水體。從今天開(kāi)始，主要問(wèn)題是這些設(shè)備在生產(chǎn)過(guò)程中大量排放的污水。這些來(lái)自提純和精煉的車(chē)間的污水含有大量的有機(jī)污染物(中性脂肪、磷脂、有機(jī)酸等)，以懸浮液和乳濁液的形式溶解。事先未經(jīng)凈化的污水不可能排放在開(kāi)放的水體中。企業(yè)出于經(jīng)濟(jì)問(wèn)題的考慮不會(huì)中和排放的氫氧化鈉，雖然水體會(huì)造

39、成更嚴(yán)重的污染，但是氫氧化鈉是必須的。污水特色是高度的渾濁(渾濁)；外表類(lèi)似懸浮液搖動(dòng)后的乳濁液，以微小的鱗片形式存在，并有腐敗過(guò)程產(chǎn)生的難聞的腐臭氣味。</p><p>　　Experimental part</p><p><b>　　實(shí)驗(yàn)部分</b></p><p>　　In order to design a method for pu

40、rification of the aforementioned wastewaters, we have conducted a series of experimental investigation. A quality assessment (in terms of content of polluting substances) of cooking oil-production wastewater was made usi

41、ng physical and chemical methods of analysis. A degree of pollution of wastewater was determined in terms of the following indicators (Table 1).</p><p>　　為了設(shè)計(jì)出一種凈化上述污水的方法，我們已經(jīng)進(jìn)行了一系列的實(shí)驗(yàn)研究。烹飪產(chǎn)生的含油污水質(zhì)量的評(píng)價(jià)(污染物質(zhì)的

42、指標(biāo))采用物理和化學(xué)的分析方法。污水的污染程度取決于以下指標(biāo)(表1)。</p><p>　　Table 1. Quality indicators of wastewaters from the examined oil-producing facilities</p><p>　　表1 從含油污水設(shè)備中檢查出的質(zhì)量指標(biāo)</p><p>　　In order to

43、determine BOD-5, a neutralisation of the examined water sample was made and the water sample was dissolved using a specially prepared, oxygen-saturated water containing nutrients; incubation of the sample lasting a certa

44、in period of time (5 days) at t° = 20±1°С without air and light access in an entirely filled and corked bottle; concentration of dissolved oxygen before and after the incubation period was determined by th

45、e method of voluminal iodometric titration; turbidity of the wa</p><p>　　為了確定BOD-5, 制作經(jīng)檢測(cè)水樣的中和液，然后倒入一種特別的準(zhǔn)備好的、含飽和氧、含有機(jī)物的水；保持水樣一段時(shí)間（5天）恒溫20±1攝氏度，滿(mǎn)滿(mǎn)地放入完全隔絕空氣、光照的用瓶塞塞住的瓶子；用碘量滴定的體積表示恒溫培養(yǎng)期前后的濃度；水樣的濁度用分光光度法（濁

46、度滴定法）。</p><p>　　For identification of fat content of wastewaters, the thin-layer chromatography method was applied with silica gel “H” plates produced by Merk company, layer thickness = 0.3 mm. Chromatograph

47、y was made in the following systems:</p><p>　　為辨認(rèn)污水中脂肪的含量，薄層色譜法應(yīng)用默克公司生產(chǎn)的硅膠“H”板，厚度=0.3毫米。色譜分析法在下列溶液中:</p><p>　　Direction 1: chloroform: methanol: 25 % aqueous solution of ammonium in the followin

48、g proportions: 65-25-2.</p><p>　　Direction 2: chloroform: methanol: acetic acid: water; proportions: 85-15-10-3.</p><p>　　方法1：氯仿：甲醇：25%的硝酸銨水溶液：比例:65-25-2。</p><p>　　方法2：氯仿：甲醇：醋酸：水；比例

49、:85-15-10-3。</p><p>　　After preliminary neutralisation and deposition of sulphates, the wastewater (qty = 50 mcL) was applied on the plate in right lower angle. After drying, the plate was inserted into the

50、chromatographic chamber filled with a system of solvents for Direction 1. After the F1 Solvent Front was passed, the plate was removed and air-dried. Then it was turned over 90° clockwise compared to its initial pla

51、cing, and again inserted into the chromatographic chamber filled with a system of solvents for Direc</p><p>　　經(jīng)過(guò)初步硫酸鹽中和和沉淀，污水（數(shù)量=50mcl）涂抹在感光片右下角。經(jīng)過(guò)干燥，感光片插入到裝滿(mǎn)方法1溶液的色譜儀內(nèi)。在通過(guò)F1溶劑后，將感光片移開(kāi)、風(fēng)干。接著順時(shí)針轉(zhuǎn)90度和最初的進(jìn)行比較，再

52、一次插入到裝滿(mǎn)方法2溶液的色譜儀內(nèi)。在通過(guò)F2溶劑后，將感光片再次移開(kāi)、風(fēng)干。然后放入碘蒸汽中15分鐘顯影。磷脂顯示著各種黃色的色譜圖。</p><p>　　It was detected that oil production-related wastewaters contain the following phospholipids (Figure 1):</p><p>　　這是市

53、面上檢測(cè)到的油制造行業(yè)污水所包含的磷脂(圖1)：</p><p>　　Figure 1. Chromatogram of phospholipids in oil production Wastewaters</p><p>　　圖1 油制造行業(yè)污水的磷脂氣相色譜</p><p>　　1 - neutral lipids;</p><p>　

54、　2 - phosphatidylethanolamine;</p><p>　　3 - phosphatidyl-glycerol;</p><p>　　4 - phosphatidyl inositol;</p><p>　　5 - phosphatidic acids; </p><p>　　6,7 - lysophosphatidyl

55、choline;</p><p>　　8 - sphingomyelins</p><p>　　9 - phosphatidylserine;</p><p>　　10 - lysophosphatidylinositol;</p><p>　　11,12 – lysophosphatidylserine</p><p&g

56、t;<b>　　1 - 中性脂肪。</b></p><p>　　2 - 磷脂酰乙醇胺;</p><p>　　3 - 磷脂酰丙三醇;</p><p><b>　　4 - 卵磷脂;</b></p><p><b>　　5 - 磷脂酸;</b></p><p>

57、;　　6、7 - 溶血卵磷脂;</p><p><b>　　8 - 鞘磷脂</b></p><p>　　9 - 磷脂酰絲氨酸;</p><p>　　10 - 溶血磷脂纖維醇;</p><p>　　11、12 - 溶血磷脂絲氨酸</p><p>　　On the stage of primary w

58、ater treatment, reagent methods were used, which included neutralisation of oil industry’s wastewaters using calcium carbonate (chalk) which is a cheap and easily accessible material. The technology of water purification

59、 by chemical deposition presupposes its preliminary purification from colloidal-dispersed and suspended substances using coagulation with subsequent separation of the deposition as a result of filtering, settlement or fl

60、otation. As a result of chalk injec</p><p>　　在主要水處理階段，使用化學(xué)試劑的方法，食用油工業(yè)污水使用廉價(jià)、方便的碳酸鈣(白堊)作為材料。水凈化工藝使用混凝劑將膠體和懸浮物進(jìn)行初步分離，然后將分離結(jié)果進(jìn)行過(guò)濾、沉淀或浮選。將0.5克碳酸鈣放入污水（體積=0.5毫升）中，通入大量碳酸，觀(guān)察泡沫形成的厚層和硫酸鹽沉淀(生產(chǎn)過(guò)程中使用的)。當(dāng)混合物加熱，上述過(guò)程會(huì)加速，這充

61、分說(shuō)明中和物可以未經(jīng)冷卻立即加到污水中；這有利于清潔水的合理使用。由于上述的過(guò)程中PH值達(dá)到5.1，所以將1.5克碳酸鈣加到50毫升水中。</p><p>　　On the examination stage of wastewater purification from organic fraction we have proposed the usage of oxidants, specifically h

62、ydrogen peroxide H2O2, oxygen O2, ozone O3, and sodium hypochlorite which is a multi-tonnage production waste. The subject experimental investigations aim to determine the quantities of oxidant expenditure which are suff

63、icient for complete cleaning of wastewaters from organic polluters on the one hand and to prevent over-expenditure of oxidants, on the other hand. In or</p><p>　　在研究有機(jī)污水凈化階段中，我們提出了使用氧化劑，特別是過(guò)氧化氫H2O2、氧氣O2 、臭氧O

64、3和大量產(chǎn)品廢物次氯酸鈉。實(shí)驗(yàn)研究的主要目的是確定氧化劑的數(shù)量，一方面保證氧化劑能清潔水中有機(jī)污染物，另一方面預(yù)防氧化劑過(guò)量。為了實(shí)現(xiàn)這一目標(biāo)，我們進(jìn)行了一系列的研究，將不同的氧化劑加入到污水中。實(shí)際水質(zhì)指標(biāo)就是凈化效果。</p><p>　　The conducted studies have shown that among all the oxidants which were used, the most

65、 effective one is sodium hypochlorite. Therefore, the basis of the proposed method for purification of wastewaters was a preliminary separation of clarified and neutralized wastewater by dint of calcium carbonate, subseq

66、uently sodium hypochlorite for water clarification and its additional neutralization was used. This is the most simple and technologically feasible method. It has several advantages, specificall</p><p>　　進(jìn)行的

67、研究表明，在所有的氧化劑的使用中最有效的一種是次氯酸鈉。因此,該方法的基礎(chǔ)上,對(duì)污水的凈化就是初步用碳酸鈣分離和沉淀，隨后用次氯酸鈉凈化及其中和的過(guò)程。這是最簡(jiǎn)單可行的方法。具有很多特別的優(yōu)點(diǎn)：</p><p>　　— it can easily be conducted and its reactant supply is not expensive;</p><p>　　— the r

68、eactant (sodium hypochlorite) is available in Kalush town where it is produced as a byproduct of the production process; </p><p>　　— the reactant expenditure is not substantial; quantities of formed wastes a

69、re not large (only oxidised, disinfected organic polluters are produced);</p><p>　　— it can be used after enhancement of existing purification facilities;</p><p>　　— wastes can be used as an eff

70、ective organic and mineral fertiliser. </p><p>　　-它可以很容易的進(jìn)行而且反應(yīng)物便宜；</p><p>　　-反應(yīng)物(次氯酸鈉)是可在卡盧什小鎮(zhèn)作為生產(chǎn)過(guò)程中產(chǎn)生的副產(chǎn)品；</p><p>　　-反應(yīng)物開(kāi)支不大；加工廢物的數(shù)量也不大（只有氧化廢物、已消毒的有機(jī)污染物產(chǎn)生）；</p><p>　

71、　-可以用來(lái)在提高現(xiàn)有凈化設(shè)備；</p><p>　　-垃圾可以作為一種有效的有機(jī)、礦物肥料。</p><p>　　Experiments were conducted using samples of wastewater, the aim of which was its purification from organic substances with the usage of ac

72、tive 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

73、stramineous, necessary quantity V (NaClO) = 9.2 ml with concentration С (NaClO) = 10 % (vol.). Also, it is observed that flakes are formed as </p><p>　　實(shí)驗(yàn)研究了污水樣品，目的是用含有一部分次氯酸鈉的次氯酸把有機(jī)物中提純。最初的污水（V = 100毫升），PH值

74、為2.3，添加次氯酸鈉直到顏色從麥稈色到深棕色，需要次氯酸鈉的體積9.2 ml，次氯酸鈉的濃度=10% （體積分?jǐn)?shù)）。同時(shí)，觀(guān)察混合表面產(chǎn)生的鱗片。鱗片隨后沉到底部。當(dāng)次添加氯酸鈉到預(yù)先用碳酸鈣中和的水中，PH到達(dá)所需要的中性值。</p><p>　　Upon having conducted the neutralisation and upon having achieved the necessary pH

75、 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, specific

76、ally 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 depositi</p><p>　

77、　中和后到達(dá)所需要的中性值的水，按上述澄清，繼續(xù)下一步：分離形成的沉積物質(zhì)，特別是沉淀或仍殘留在上層水中的磷脂。觀(guān)察磷脂沉淀主要是用的色譜分析方法。將收集到的沉淀溶解到2毫升酒精中，涂抹（數(shù)量=50mcl）在感光片右下角；然后風(fēng)干、插入到色譜儀內(nèi)。</p><p>　　Therefore, upon completion of purification using sodium hypochlorite and

78、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 confirm

79、s the efficiency of the proposed technology for removal of organic polluters. </p><p>　　因此,在利用次氯酸鈉凈化和在得到沉淀中磷脂進(jìn)行色譜分析的基礎(chǔ)上，得出結(jié)論，沉淀中的脂肪含量幾乎等于污水中的脂肪含量。這證實(shí)了該技術(shù)的有效性除去有機(jī)污染物。</p><p>　　Conclusions </p&

80、gt;<p>　　We can see that, as of the present day, the existing technologies for wastewater purification enable us to remove any polluter out of them. However, thereby it is also crucially important to consider the

81、cost of such purification, especially taking into account the present condition of national economy. That is why we have chosen the subject purification method not only with regard to the efficiency of wastewater purific

82、ation with which it is characterised but also with regard to its cheapness. </p><p><b>　　結(jié)論</b></p><p>　　我們可以看出，現(xiàn)在的污水凈化技術(shù)能使我們?nèi)コ渲腥魏蔚奈廴疚铩Ｈ欢?，絕對(duì)重要的是這樣凈化的成本，特別是考慮到國(guó)民經(jīng)濟(jì)的現(xiàn)狀。這就是為什么我們選擇物質(zhì)凈化方