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A study on wastewater treatment technology of pyrite acid industry
ÕªÒª abstract:
ÁòËáÊÇÖØÒªµÄ»¯¹¤Ô­ÁÏÖ®Ò»£¬ÁòËáµÄ²úÁ¿³£±»×÷ΪºâÁ¿Ò»¸ö¹ú¼Ò¹¤Òµ·¢Õ¹Ë®Æ½µÄ±êÖ¾.
The  output of sulfuric acid£¨H2SO4), which was one of important chemical material, was  generally  regarded as a standard to evaluate  the development of  industry in a country.
ÔÚ¸ÖÌú¡¢Ò±½ð¡¢Ê¯»¯¡¢»¯¹¤¡¢¾ü¹¤µÈÐí¶àÁìÓò±»¹ã·ºÓ¦Óá£Ëü»¹ÊÇÐí¶à¹¤ÒµÉú²úµÄÖØÒªÔ­ÁÏ.
Moreover, H2SO4 was also a  important raw materials for many  industrial production,which was widely applied in  steel, metallurgy, petrochemical industry, chemical industry, military industry and many other fields.
2004 ÄêÖÁ½ñÎÒ¹úÁòËá²úÁ¿ÒÑλ¾ÓÊÀ½çÊ×룬2006 ÄêÖйúÁòËá²úÁ¿´ï 50.43 Mt£¬ÒÔÁò»Ç¡¢ÁòÌú¿óºÍÒ±Á¶ÑÌÆøÎªÖ÷µÄÔ­ÁÏ
The  output of sulfuric acid,  was major synthesized from sulphur,  pyrite and metallurgical off gases,  have already ranked the first in the world at 2004, and the H2SO4 output in China reached 50.43 Mt at 2006.
¸Ä¸ï¿ª·ÅÒÔÀ´£¬ÖйúÁòËáÐÐÒµµÄ²úÒµ¼¯Ô¼»¯³Ì¶È´ó·ùÌá¸ß£¬µ¥ÏµÁÐÁòËá×°ÖõÄ×î´ó¹æÄ£·Ö±ðΪÁòÌú¿óÖÆËá 400 kt/a¡¢Áò»ÇÖÆËá 1000 kt/a¡¢Ò±Á¶ÑÌÆøÖÆËá 600 kt/a¡£
Industry intensive degree of China's sulphuric acid industry has been
raised significantly since the reform and opening up. The  the largest single series of  sulfuric acid device was  400 kt/a of  pyrite-based sulphuric acid,  1000 kt/a of sulphur-based sulphuric acid and  metallurgical off gases based  sulphuric acid,respectively.
2008 Äê£¬ÔÆÄÏ¡¢ºþ±±¡¢É½¶«¡¢¹óÖÝ¡¢½­ËÕ¡¢°²»Õ 6 ¸öÊ¡²úÁ¿³¬¹ý 300 Íò¶Ö£¬Õ¼È«¹ú×Ü ²úÁ¿µÄ 57%£»¶øÎÒÊ¡¸ß´ï 811 Íò¶Ö£»²úÁ×ËÄÊ¡£¨ÔÆ¡¢¹ó¡¢¶õ¡¢´¨£©µÄÁòËá²úÁ¿Õ¼È«¹ú×ÜÁ¿ 38%£»
The H2SO4 output of Yunnan,Hubei,shandong,Guizhou,Jiangsu and Anhui 6 provinces has  exceed 300  ten thousand ton, which  was about  57%  of the national output, while reached 811  ten thousand ton in our province. The  H2SO4 output of 4  provinces (Yunnan,Guizhou,HUbei and sichuan) of phosphorus production was
about 38% of  the national output.
µ«ÊÇ£¬ÁòËṤҵÊôÓÚ»¯¹¤ÐÐÒµ£¬Òò´Ë¾ßÓл¯¹¤ÐÐÒµµÄ¸ßÎÛȾÐÔ.
Sulfuric acid industry, which  belongs to chemical industry, has the characteristic of  high polluted .
ÁòËṤҵÅŷŵÄÖ÷ÒªÎÛȾÎï°ü À¨´óÆøÎÛȾÎïºÍË®ÎÛȾÎÆäÖдóÆøÎÛȾÎïÖ÷ҪΪ¶þÑõ»¯Áò£¨SO2£©¡¢Ë®ÎÛȾÎïÖ÷ÒªÎªÖØ½ðÊô
The major pollutants of sulfuric acid industry  comprisesd the atmospheric pollutant that was mainly for SO2 and water pollutant that mainly for heavy metal.
ÎÒ¹úÁòÌú¿ó´¢Á¿´ó·Ö²¼¹ã,¶øÁò»Ç×ÊÔ´Ôò½ÏΪȱ·¦,Òò´ËÎÒ¹úÉú²úÁòËáµÄÔ­Áϳ¤ÆÚÒÔÀ´¶¼ÒÔÁòÌú¿óΪÖ÷,ÁòÌú¿óÖÆËá²úÉúµÄÔüÁ¿´ó,ÌØ±ðÊǺ¬Éé·ÏË®ÅŷźóÑÏÖØÎÛȾ»·¾³,¶ÔÖܱ߾ÓÃñµÄÉú»î½¡¿µÒ²ÓÐÑÏÖØÍþв.
Considering that  the sulfur resources were under poor conditions in our country  the pyritic  resources, which were found to be widely distributed in great reserves, was used as the mainly raw materials to produce  H2SO4 for a long time.
,ÁòÌú¿óÖÆËá²úÉúµÄÔüÁ¿´ó,ÌØ±ðÊǺ¬Éé·ÏË®ÅŷźóÑÏÖØÎÛȾ»·¾³,¶ÔÖܱ߾ÓÃñµÄÉú»î½¡¿µÒ²ÓÐÑÏÖØÍþв
Pyrite-based sulphuric acid has the disadvantages of high slag and wastewater, especially the Arsenic waste water, which  made severe pollution of the environment after discharged, has a  serious threat to surrounding  people's life and health.
Òò´Ë¶ÔÁòÌú¿óÖÆËṤҵÖзÏË®´¦Àí¼¼ÊõµÄÑо¿¾ßÓкܴóµÄÒâÒå.
Thus, the study on  wastewater treatment technology of pyrite acid industry has a profound meaning.
¹Ø¼ü´Ê£ºÁòËáÉú²ú¡¢·ÏË®¡¢ÁòÌú¿ó¡¢´¦Àí¡¢ ¼¼Êõ
Key words:  sulfuric acid production,wastewater,  pyrite,treatment , technology

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A study on wastewater treatment technology of pyrite acid industry
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A study on wastewater treatment technology of pyrite acid industry
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