Current, the technology of to decoke of mainstream flue gas that our country uses is put in two big errors, administered then already some pollution, produced new pollution again, still need finally to undertake new processing, chinese division assist this kind of viewpoint put forward in the investigation report that committee of experts of project of system of advisory service center is in Chinese science and technology to pollute processing circumstance to our country flue gas.
The make a comprehensive view is current a variety of flue gas to decoke of home (2 oxidation sulfur) technology, it is with power plant exemple, those who apply scale to be as high as 85% is what introduce from abroad is wet limestone / gesso law craft and equipment, although to reducing flue gas medium 2 oxidation sulfur is polluted,removed particular function, but produced vulcanization gesso again at the same time such by-product. Limestone / every handle equipment of gesso law to decoke sulfur of a ton of 2 oxidation produces desulphurization gesso 2.7 tons. Increase by degrees as the year after year of the installed capacity of igneous power plant of our country, predict 2010, annual desulphurization gesso and other by-product gesso will exceed 100 million tons. Of imported equipment about domestic and international manufacturer, be fond of the recycle that publicizes desulphurization gesso, can replace the mine gesso of natural exploitation. Often get actually the limitation of district, of desulphurization gesso using often is a kind of theoretic view only, the ore of our country creams (CaSO4) natural resources is quite substantial, already the reserves of ascertain exceeds 1 billion tons, gesso of this kind of mine is easy exploitation, good in quality and cheap in price, be used as a building to decorate material and sculpture material in great quantities, still apply Yu Zhu to build widely, the domain such as pottery and porcelain, medical treatment, cosmetic, food. And desulphurization gesso contains a variety of impurity, be like shape of bean curd broken bits loose, its compressive strength, tensile strength cannot compete with mine gesso, it is valence consequently not cheap thing is not beautiful, nobody is willing to use, must make finally abandon processing, take up the land of 1 million mus of above. Gesso of forsaken to decoke piles caboodle to be just as " snow mountain " , sending out for a long time pernicious influence: After sunshine sun insolates, after volatilizing " acidity material " accentuated again " acid rain " minatory; The gesso powder that is decomposed is formed into air by wind belt suspension is atomic, these particle bestrew plant surface, influence photosynthesis brings about stalk content dead seedling, Huang Xie, sodden Xie Huo to fall beautiful premature drop; The harmful material that gesso end is decomposed to release makes the crowd skin of long-term and open operation allergic, vasomotor, cause offer oxygen obstacle for blood, scalp blood circulation is undesirable, and make a hair fall off; Cause the stimulation of person eye, mouth, nose mucous membrane, damage of the serious liver that can cause a person, kidney and atrophy; The suspension particle under 10 μ M can enter the diameter human body lung, cause chronic breath disease even lobar bleb is atrophic, particle still can be absorbed via lung take the whole body by blood, produce an influence to central nervous system, constitutional weak can produce other complication to bring about death. To wet, the desulphurization gesso of accumulation " hill " at any time road of metropolis stay, concussion and village are abandoned; Rainwater of desulphurization gesso classics erodes surface water of infiltration land cultivated land, pollution and groundwater, enter our food chain. Administered the pollution of 2 oxidation sulfur in old flue gas, produced 2 pollution of new desulphurization gesso again. This is the biggest error on people understanding. The expert thinks, although changed configuration, desulphurization gesso or a kind of harm pollute a source badly, if do not adopt active and significant step, the new patient's condition that the harmful material that it releases causes will cause huge harm to human body.
Previous12 Next