Underground drainage of about 3 million tons oil of Year of China " Appear again " Strengthen management in scholar's Ji

Underground drainage of about 3 million tons oil of Year of China " Appear again " Strengthen management in scholar's Ji
Not having no appetite on purpose, but dear friend, as you carry several sticks of deep-fried twisted dough sticks, while taking the first subway in early morning and going to work; As you stand at the great time that chew mutton bunch of street; One basin, on the sweet-smelling boiled fish, you realize oneself in danger give child order as you? Dangerous to come from the oil. Wonder when it is, the place that some people get rich of sewer of the city. They fish for a large amount of dim and muddy and slightly taking the form of red lotion from there every day, only pass filtration, heating, precipitating, separation of a night, can let these distribute malodorous rubbish to become taken as the clear " edible oil " ,Sell through low price finally, return to people's dining table. This kind is called " The oil of underground drainage " Three products,last triglyceride its principal ingredients, but a lot of cause a disease, a carcinogenic materials toxic. "You must have eaten the oil of underground drainage too. " Says to China Youth News reporter so what east level are food science of engineering institute of Wuhan and institute's professor of the project. His another identity is the oil of standardized committee of national grain and oil and oil group leader of work group. According to the estimation by him, the underground drainage oil that our country returns to the dining table every year is 2 million - 3 million tons at present. And Chinese move in one year, the total amount of vegetable oil consumption is probably 22,500,000 tons - -That is to say, according to the proportion, you eat 10 meals, a one that ran into at once is the oil of underground drainage. In an era of paying attention to the food security, the ideal state is, you eat out, draw out, soak get vegetables by one test paper conveniently, take, come out, compare with stave after a while, then cry: "The shopkeeper, change the oil! " But reality is, so far, the scientists have not found a kind of ideal detection and differentiation underground drainage oil means yet. Influencing science of the appetite to investigate at the beginning of the new term once, food science of Wuhan engineering institute and 9 seniors of the project institute received their new subject - -Investigate three towns of underground drainage oil states of Wuhan. "This is an investigation of influencing the appetite. " Jiang Shan, group leader of group of inquiry, says, because it is their key task to sample. Then, this group of university students change into the old clothes, wear gloves, lie prone at the edge of sewer near the restaurant hotel every day. It is fortunately winter, the low temperature condenses the oil as the semi-solid state, the sewer is not as notorious as summer either. The students dig out those with the shovel " Red, white " Floating thing, hold in the plastic bag. However, it is meticulous to do these, because the numerous warnings of the tutors, should " take care those are which retrieve oil of underground drainage, they will beat people " . One that is with university student " Furtively" Compare, the person who retrieves job of those underground drainages of oil is really " honest and openhearted " (used after an attribute). They only need a shovel, several shabby drums, and an electric motor car can come back with fruitful result, it is it that take more first flashlight in being dark at most. Sometimes come into unavoidable confrontation, the students dig the sight that the move of the oil will unavoidably attract some antagonism, also Zeng someone comes over to cross-examine " What is doing " . The students are very nervous, say prevaricating that wants to " take home and feed dogs " . While surveyed and studied, the students know, refine oil of a ton of underground drainages from the rubbish of kitchen cabinet of the catering trade, cost is only about 300 yuans. In their view, it is the main reason that oil exist for a long time in the underground drainage that the interests are driven. The person who draws the oil of underground drainage seems to be unattractive, in fact draw a barrel of oil on average and earn above seventy or eighty yuan. One usually can draw 4 barrels every day, after retrieving and refining, even if sell only according to half of the edible oil market price, can earn more than 10,000 yuan too every month, it is equivalent to the senior white collar's income. Someone tells the students, in this line, even if the unskilled labourer doing odds and ends, there is salary of 2500 yuan every month. Because of paying attention to frying and frying the cooking culture stewed and extravagant and wasteful etc. to get used to, a large number of rubbish of kitchen cabinet and therefore the derivatized underground drainage oil has become China's characterized phenomenon. In the investigation, the students find, in Wuhan, even just sell the small stand of aleurone of fish's soup, produce the kitchen cabinet rubbish about 15 kilograms too every day. Through estimating, there are more than 60,000 all kinds of food and beverage shops in Wuhan city, produce about 252,000 tons of rubbish of kitchen cabinet, discard about 126,000 tons of oil every year. Then, in such a city, drawing the oil of underground drainage becomes the sudden huge profits trade. Someone has monopolized the rubbish of kitchen cabinet of some restaurants, send the special messenger to purchase every day. A city will usually be divided into several scenes of spheres of influence. It is so abominable " The competitive environment " Leave, student of group of inquiry through " steal taking secretly tomorrow " Way,it is many in getting 60 pieces of sample. The bottled underground drainage oil sample of glass, is nowadays left in ice boxes of the laboratory, sticking to above " The Sichuan-cooking restaurant " , " boiled fish " Wait for labels. Though bottle lid fill in closely, spread some pungent sour bad smell smell frequently, it is said this is " Aldehyde that unsaturated fatty acid acid produces after frustrating " . Finish, sample work, student of group of inquiry investigate the intersection of food and beverage and market of Wuhan in passing, found finally, two pots are put impressively at some breakfast stands, a pot was the good oil labelled, another pot have label, " can't bear while being muddy obviously ". Take out mutton bunch in the university city, always take the bottled oil of a Sprite, those " oil that color and luster is overly golden yellow " ,Inside is all precipitate. "Wuhan is only a epitome. " Jiang Shan says, in several hundred cities in China, there is the one that retrieves oil of underground drainage to in every case have places of catering trade. Conversely, because is cheap, these underground drainages of oil flows back to the catering trade again finally, pave to the five-star hotel small by the street, there is not one that must exempt. The achievement of medical research reveals, it will cause the obvious injury to the human body to take in the oil of underground drainage for a long time, for instance developmental obstacle, it is apt to suffer from enteritis, and pathological changes such as liver, heart and kidney are swellinging and fatty liver,etc.. And the aflatoxin is a kind of strong carcinogen for one of the main danger things in the underground drainage oil, its toxicity is 100 times that of Arsenicum. Another question is on the ethics. "The oil which others have eaten, go bad in the sewer, drag for, can people eat down? " A member of group of inquiry says frowning. That period of time, always have " sour flavor not washing off " on his clothes . The investigation has been only used for 10 days, but this not appetite of two weeks of his. The oil mixes oil, the immortal worries From day when was born from the catering trade, the oil of underground drainage would appear inevitably. But as it is called at first " Water from washing rice " When, usually just used for feeding pigs, did not begin to eat for somebody until most recent 20 years. In the view of scientific research worker, the difficult point of managing oil of underground drainage lies in, after through washing, distilling, decolorizing, taking off bad smellly etc. and refining the course, from appearance and sense organ only, it is very difficult to distinguish oil of underground drainage and ordinary oil. Illegal retailer Will also usually mix the oil of underground drainage in the edible oil, if there is less content, more difficult to measure. ? Case Wen steal Na forgive times of Jia �� the intersection of junket and the intersection of paralysis and the intersection of Xi and angstroms of dam tube bright to park �� bones of the body for Lian sand Sui thin? Professor He DongPing has been engaged in the research of the oil of underground drainage already for 7 years, he and his research group has born the subject of the national standardized board of trustee at the same time - -" discard the research that the oil utilizes the standard in the rubbish of urban kitchen cabinet and make " ,The present important task is to find one and can be measured and distinguished the oil effective means of the underground drainage. In where conquer east, seem, traditional detection method hold characteristic a certain of underground drainage in the oil only, but no method can measure the underground drainage oil of different sources effectively at the same time, lead to the fact that measures the error bigger sometimes, it is possible to more misjudge. If underground drainage oil mixes content can not measured out either when being less. For example conductivity measures the law. Because the oil has contacted the detergent, metal ware in the course of cooking, or stay in the heavy metal environment for a long time, because the conductivity value of the ditch oil here is obviously higher than the ordinary edible oil. In Wuhan engineering institute, an undergraduate whose surname is Liu once found and measured the oil method of the underground drainage in one minute. He, through measuring the conductivity of the oil, draws the conclusion that it is 5-7 times of the first class edible oil for the oil conductivity of the underground drainage. Here plant method to " The oil of water from washing rice " Detection relatively effective. But its defect lies in, the food oil only suitable for the oil addition level of the underground drainage above 20% is measured. Another kind is that cholesterol measures the law. Because underground drainage oil is many kinds of moved, mixture of the vegetable fat, among them generally contain cholesterol in the animal fat, seldom include or only contain a small amount of cholesterol very much in the regular vegetable oil that people ate. Can distinguish some underground drainage oil while utilizing this characteristic, but require too the addition level of the oil of underground drainage is above 10%. Under the guidance of teacher of Wuhan engineering institute, a graduate student called Wang Le once developed a kind of blue test paper, until the intersection of underground drainage and proportion that oil mix increase constantly, test paper will appear getting yellowish green, color change faint yellow and jonquilleous,etc.. This is made of oil of basis " The accumulating " To measure the purity of the oil, have sodium chloride (salt) to act as the oil When, its accumulating is great, small on the contrary, but the edible oil produced of regular channel is not usually sodium chloride. But this method is limited by interpolation proportion of the oil of underground drainage too. In the network, can find and specially produce " the oil of underground drainage measures reagent box fast " Company. But according to manual that this company offers, do not " undergo purified oil (such as sesame oil, Chinese prickly ash oil,etc.) to some With adding the oil (such as chilli oil) of other compositions ,This method is easy to produce falsely and positively " . "The oil detection method of the underground drainage in the future, the synthesis that it must be the past experience of the set judges the law. " He DongPing says, the single means can't be regarded as the differentiation " classical method " Bring into future " standard ". The government manages and is taken as a scientific research worker engaged in oil research by a key, what conquer east but think the intersection of underground drainage and the intersection of administration and detection means or what standard can determine of oil all the time, the key still lies in the government manages. He once calculated such account: Every 10,000 people can produce rubbish of a ton of food every day, and the rubbish of food is after the process washes, distills, decolorizes, takes off bad smellly etc. and processes the procedure, can produce oil of underground drainage of 130 kilograms, when it is returned to the market of farm produce to sell, the price is half of the ordinary edible oil. So comprehensive statistics reveal, the gross profit in one year of inland ditch oil in the country can be up to 1,500 million - 2 billion yuan. But in the treatment of the rubbish of kitchen cabinet, our country is in " anarchy " for a long time The state, this provides an " ashy industry " in large scale for some illegal retailers Space. So He DongPing's imagination is, " must be concentrated on purchasing and dealing with the rubbish of kitchen cabinet by the government, stop the oil of underground drainage from source " . In where under the intersection of the east and equal the intersection of scientific research and worker advocate, since this year, Wuhan three town Wuchang, Hankow, Hanyang build a garbage disposal factory of kitchen cabinet respectively. While dealing with rubbish, still can produce 25 tons of biological diesel oil and 400,000 cubic meters of marsh gas every day. "The economic benefits second, the social benefit first. " He DongPing says, so long as this city exists, these factories should exist. According to his imagination, more than 600 cities in the whole country, so long as build up more than 3000 such factories, not only can relieve " The rubbish encircles a city " ,Can solve the oil problem of the underground drainage completely at the same time. In fact, have relevant policy that is issued in some domestic areas. Ningbo of Zhejiang Province implements " rubbish management of kitchen cabinet " as far back as 2006, according to this " method ", the rubbish of kitchen cabinet of Ningbo urban area hotel, dining room will register, concentrate innoxious treatment in unison, in order to close down the oil of underground drainage from the source. He DongPing has gone to Ningbo and investigated, find the result prominent. Recently, Beijing has utilized microorganism's fermenting technology too, makes the rubbish of kitchen cabinet into organic feed and enterprise of the organic fertilizer, the clean technology is favored by the international risk investment institution. From where the intersection of the east and equal the intersection of scientific research and worker participate in make it " discards oil, utilizes and then standard in the urban the intersection of kitchen cabinet and rubbish " to be expected to issue in 2011 too. "For example, the management that will strengthen the field of circulation in the future, require there must be signs in the oil in bulk. " He DongPing says. All here all one's life according to this " Do the oil " Scientist estimate,want completely China wipe out oil on underground drainage, might take 10 year or so also. (Jiang XinJie)

|