KR870001750B1 - Filtering material for treating industrial waste water - Google Patents
Filtering material for treating industrial waste water Download PDFInfo
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- KR870001750B1 KR870001750B1 KR1019850001443A KR850001443A KR870001750B1 KR 870001750 B1 KR870001750 B1 KR 870001750B1 KR 1019850001443 A KR1019850001443 A KR 1019850001443A KR 850001443 A KR850001443 A KR 850001443A KR 870001750 B1 KR870001750 B1 KR 870001750B1
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- South Korea
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- anthracite
- activated carbon
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- filtering material
- coke powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
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- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Description
본 발명상의 제조법에 의한 여과제의 활성탄 조성에따른 시안제거율을 나타낸 그래프.A graph showing the cyan removal rate according to the activated carbon composition of the filter medium according to the production method of the present invention.
본 발명은 산업폐수처리시의 여과제에 관한것이다. 일반적으로 산업폐수는 생화학적방법에 의해 정화처리되는데 생화학적처리에 앞서 여과기에서 괴코크스(塊 Coke)나 활성탄등의 여과제를 사용하여 공해물질을 흡착제거하는 전처리가 실시되고 있다. 그러나 괴코크스의 경우 공해물질을 흡착하는 표면적이 작아 여과시 공해물질의 제거율이 낮으며, 활성탄은 괴코크스에 비하여 공해물질의 제거율은 높다하나 입자가 미세하여 폐수의 여과처리속도를 일정한계 이상으로 증가시키는 것이 용이하지 않다.The present invention relates to a filter agent for industrial wastewater treatment. In general, industrial wastewater is purified by a biochemical method. Before the biochemical treatment, a pretreatment is performed in which a pollutant is adsorbed and removed using a filter agent such as Coke or activated carbon. However, in the case of lump coke, the removal area of pollutants is low because of the small surface area that adsorbs pollutants and activated carbon has higher removal rate of pollutants than lump coke. It is not easy to increase.
따라서 종래의 활성탄에 의한 여과처리법에 있어서는 폐수량이 증가할수록 여과처리설비의 확장이 불가피하다.Therefore, in the conventional method of filtration with activated carbon, it is inevitable to expand the filtration system as the amount of wastewater increases.
본 발명은 이상과 같은 문제점을 고려하여 공해물질의 흡착제거율이 좋으면서도 여과처리속도의 조절이 용이한 여과제를 제공코져하는 것으로서 이하 본 발명에 대하여 상술하기로 한다.In view of the above problems, the present invention provides a filter medium having good adsorption and removal rate of pollutants and easy control of the filtration treatment rate.
본 발명의 여과제는 분코크스(Coke Powder) 10-50중량%, 70-80중량%, 무연탄(Anthra cite)10-15중량%, 분코크스와 무연탄의 비율이 중량비로 1 : 1의 조성비로 되며, 분코크스를 핵입자로 하여 그 외부에 활성탄이 결합되고 분코크스와 활성탄의 결합계면부의 공간부에 무연탄이 결합되어 형성된 의사립자들이 괴상으로 결합하여 구성된 것을 특징으로 한다.The filter agent of the present invention is 10-50% by weight of Coke Powder, 70-80% by weight, 10-15% by weight of Anthra cite, and the ratio of Buncoke and anthracite is in a weight ratio of 1: 1. It is characterized in that the activated carbon is bonded to the outside of the powdered coke as a nucleus particle and pseudoparticles formed by coupling the anthracite coal to the space portion of the binding interface between the powdered coke and the activated carbon are formed in a block form.
이상과 같은 본 발명의 여과제를 제조하는 방법을 소개하면 다음과 같다. 먼저 소요되는 활성탄의 량중 1/2을 분코크스와 혼합하여 가열한후 석탄계 점결제(Soft 피치)를 첨가하여 1차혼합조립한다.When introducing the method for producing a filter of the present invention as described above is as follows. First, 1/2 of the required amount of activated carbon is mixed with the heated coke and heated, and then coal-based caking additive (Soft pitch) is added to assemble the primary mixture.
상기가열온도는, 여과제의 제조시 첨가되는 석탄계점결제의 연화점이 100-200℃이고, 가열온도가 연화점이하 일때는 점결제가 응고되어 조립이 곤란함으로, 점결제의 연화점이상으로 한다.The heating temperature is a softening point of the coal-based binder added during the preparation of the filter agent is 100-200 ℃, when the heating temperature is below the softening point, the binder is solidified and difficult to assemble, the softening point of the binder is above.
1차 조립된 입자들에 무연탄을 첨가혼합하여 2차조립을 실시하고 2차 조립된 입자들에 나머지 활성탄(전체량중 1/2)과 점결제를 첨가혼합하고 최종적으로 조립하여 의사립화한다.Secondary granulation is performed by adding and mixing anthracite coal to the first granulated particles, and adding and mixing the remaining activated carbon (half of the total amount) and a binder to the second granulated particles, and finally granulating them.
의사립화된 입자들은 20-30kg/㎠의 압력으로 가압되고 상온까지 냉각되어 큰덩어리 형태로된후 일정크기로 절단된다. 상기 석탄계점결제는 연화점이 100-120℃인 것을 사용하여 그 첨가량은 여과제 100중량부에 대하여 0.5-1중량부를 첨가한다. 연화점이 100℃이하인 점결제의 경우는 사용중에 폐수온도(보통 40°이상)에 의해서 여과제의 강도유지가 곤란해지고 120℃ 이상인 경우는 여과제가 제조된후 쉽게 균열되어 세립화한다. 한편 점결제의 첨가량이 0.5중량부이상에서는 조립이 곤란하며 1중량부 이상에서는 여과제의 흡착능력이 저하된다.The granulated particles are pressurized at a pressure of 20-30 kg / cm 2, cooled to room temperature, formed into large chunks, and then cut to a certain size. The coal binder is a softening point of 100-120 ℃ using the addition amount is 0.5-1 parts by weight based on 100 parts by weight of the filter medium. In the case of a binder having a softening point of 100 ° C. or less, it is difficult to maintain the strength of the filter medium due to waste water temperature (usually 40 ° or more). If the binder is 120 ° C. or more, it is easily cracked and granulated after the filter agent is prepared. On the other hand, when the amount of the caking additive added is 0.5 parts by weight or more, granulation is difficult, and when 1 part by weight or more, the adsorption capacity of the filter agent is lowered.
도면은 활성탄의 성분비를 변화시키면서 상기 제조방법으로 제조한 여과제로 폐수를 처리하고 시안제거율 결과를 그래프로 나타낸것으로서 활성탄의 입도가 미세한경우 제거율이 향상됨을 보이나 입도에 관계없이 활성탄 70-80중량%에서 제거율이 최대가됨을 보여주고 있다.The figure shows the result of treating the wastewater with the filter medium prepared by the above manufacturing method while changing the composition ratio of activated carbon, and showing the result of cyan removal rate, which shows that the removal rate is improved when the particle size of activated carbon is fine, but regardless of particle size, the activated carbon is 70-80% by weight. It shows that the removal rate is maximum.
한편 하기도표는 활성탄의 비율이70중량%인 본 발명의 여과제와 2mm의 입도가 95% 이상인 종래의 활성탄을 각각 고정층으로 하여 코우크스 제조시 발생된 개스의 액화물인 석탄가스액 폐수를 290㎥/H의 유속으로 1시간동안 여과처리한 결과를 나타낸것으로서 본 발명의 여과제를 사용함으로써 폐수중 공해물 제거율이 현저히 증가함을 알 수 있다.On the other hand, the table below shows the petroleum gas wastewater, liquefied gas produced during coke production, using the filter medium of the present invention having 70% by weight of activated carbon and the conventional activated carbon having a particle size of 95% or more of 2 mm, respectively. As a result of filtration for 1 hour at a flow rate of H, it can be seen that the removal rate of pollutants in the waste water is significantly increased by using the filter agent of the present invention.
이상과 같이 본 발명의 여과제는 괴상으로 제조됨으로써 입도의 임의조절이 가능하여 폐수의 여과속도 및 여과수의 저항조절이 가능하고 이로써 폐수처리의 작업성이 양호하며, 공해물질의 제거율이 종래의 활성탄에 비하여 현저히 증가함으로써 후속 화학처리 공정등에서 정화처리약제등을 감소시킬 수 있다.As described above, the filter agent of the present invention can be arbitrarily controlled to adjust the particle size by controlling the size of the wastewater, thereby controlling the filtration rate of the wastewater and the resistance of the filtered water. Thus, the workability of wastewater treatment is good, and the removal rate of pollutants is conventional activated carbon. Significant increase compared to that can reduce the purification treatment in the subsequent chemical treatment process.
또한 본 발명의 여과제는 흡착특성이 상이한 성분들이 상호 혼합결합되어 사용될 수 있게됨으로써 공해물질의 성분이 다양하게 내포된 폐수에 적용할 수 있는 장점이 있다.In addition, the filter agent of the present invention has the advantage that it can be applied to the waste water containing a variety of components of the pollutant by being able to be used by mixing the components with different adsorption properties to each other.
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KR1019850001443A KR870001750B1 (en) | 1985-03-07 | 1985-03-07 | Filtering material for treating industrial waste water |
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KR1019850001443A KR870001750B1 (en) | 1985-03-07 | 1985-03-07 | Filtering material for treating industrial waste water |
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KR860007007A KR860007007A (en) | 1986-10-06 |
KR870001750B1 true KR870001750B1 (en) | 1987-10-06 |
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