KR20000047351A - Coagulant for treating wastewater - Google Patents
Coagulant for treating wastewater Download PDFInfo
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- KR20000047351A KR20000047351A KR1019980064159A KR19980064159A KR20000047351A KR 20000047351 A KR20000047351 A KR 20000047351A KR 1019980064159 A KR1019980064159 A KR 1019980064159A KR 19980064159 A KR19980064159 A KR 19980064159A KR 20000047351 A KR20000047351 A KR 20000047351A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
Abstract
Description
본 발명은 키토산계 수처리용 응집제 조성물에 관한 것으로, 더욱 상세하게는 양이온성 및 음이온성의 응집특성을 나타내는 갑오징어의 뼈나, 게에 존재하는 키틴을 이용하여 수질오염의 피해를 줄일 수 있는 키토산계 수처리용 응집제 조성물에 관한 것이다.The present invention relates to a flocculant composition for chitosan-based water treatment, and more particularly, to a chitosan-based water treatment that can reduce the damage of water pollution by using chitin present in bones or crabs of cuttlefish exhibiting cationic and anionic flocculation characteristics. It relates to a flocculant composition for.
일반적으로, 산업의 발전 과정과 더불어 인구의 증가에 따라 공장등에서 발생되는 각종 오폐수에 의한 수질오염은 수자원의 피해를 주는 것으로, 최근에는 생활용수나 산업용수로도 사용할 수 없을 만큼 오염정도가 심각한 상태에 이르고 있다.In general, water pollution caused by various wastewaters generated from factories, etc., along with the development of the industry, causes damage to water resources. Recently, the pollution level is serious enough that it cannot be used as domestic or industrial water. have.
상기와 같은 오폐수의 오염을 방지하기 위하여 최근에는, 일반적인 방법으로 오폐수의 용액중에 오염되어 있는 분산 입자의 처리에는 입자의 종류와 크기에 따라서 처리방법을 달리하여 처리하여 오고 있다.In order to prevent the contamination of the waste water as described above, the treatment of the dispersed particles contaminated in the waste water solution in a general manner has been treated in different treatment methods according to the type and size of the particles.
이는 입자의 오폐수에 분산되어 있는 입자의 직경이 1㎛ 이상의 침전 가능한 부유물질은 침전에 의하여 쉽게 제거할 수 있으나, 1㎛이하의 콜로이드 물질은 여과나 침전에 의해서도 분리되지 않는 것으로 나타났다.It is found that the suspended solids having a diameter of 1 μm or more dispersed in the waste water of the particles can be easily removed by precipitation, but the colloidal material of 1 μm or less is not separated by filtration or precipitation.
특히, 소수성 콜로이드는 표면 하전을 띄고 있기 때문에, 염등을 첨가하여 표면 하전을 저하하여 응집시키며, 친수성 콜로이드 입자는 수하층을 형성하여 안정한 상태로 유지되고 있기 때문에 이와 같은 입자들은 입자접착력을 부여하여 응집시켜 처리된다.Particularly, since hydrophobic colloids exhibit surface charges, they are aggregated by lowering the surface charges by adding salts, etc., and hydrophilic colloidal particles form a drooping layer and are maintained in a stable state. Is processed.
상기와 같이 오폐수등의 분산입자를 처리하기 위하여 현재 사용되어 오고 있는 응집제 중에는 산업에 이용하기에는 사용단가가 너무 높아 경제성이 없을 뿐만 아니라, 응집제로서의 응집효과도 매우 좋지않다.Among the coagulants currently used to treat dispersed particles such as waste water as described above, the cost of use is too high for industrial use, and there is no economic efficiency, and the coagulant effect as a coagulant is also very poor.
최근에는, 이와 같은 응집제를 개발하고자 많은 연구가 진행되어 오고 있으며, 보다 많은 연구에 이용되는 재료로 특별한 용도가 없이 폐기처리 되어지는 키틴을 이용한 키토산계를 변형하여 사용가능한 고분자 재료를 만드는 학술적 연구가 진행되어 오고 있다.Recently, many studies have been conducted to develop such a flocculant, and an academic research to make a polymer material that can be used by modifying the chitosan system using chitin that is disposed of without special use as a material used for more research has been conducted. It's been going on.
그러나, 아직까지는 응집제에 관한 연구로서는 키토산 단독으로 응용 또는 연구된 실정으로 수처리를 행하는데는 그다지 만족스럽지 못한 실정이다.However, as of yet, studies on flocculants have not been very satisfactory in performing water treatment with chitosan alone.
따라서, 본 발명은 상기와 같이 종래의 문제점을 감안하여 창출된 것으로, 그 목적은 갑오징어의 뼈나, 게에 존재하는 키틴의 성질인 분자사슬이 평행하게 배열된 특징을 이용하여 수질오염의 피해를 줄일 수 있는 키토산계 수처리용 응집제 조성물을 제공함에 있다.Therefore, the present invention has been made in view of the conventional problems as described above, and its object is to prevent damage to water pollution by using a feature in which molecular chains, which are the properties of chitin in the cuttlefish and crab, are arranged in parallel. It is to provide a flocculant composition for chitosan-based water treatment that can be reduced.
상기와 같은 목적을 달성하기 위하여, 본 발명의 키토산계 수처리용 응집제 조성물은, 키토산계 공중합체와 폴리염화알루미늄으로 혼합하거나 또는, 키토산계 공중합체와 액체 황산알루미늄으로 혼합한다.In order to achieve the above object, the chitosan-based water treatment flocculant composition of the present invention is mixed with a chitosan-based copolymer and polyaluminum chloride, or a chitosan-based copolymer and a liquid aluminum sulfate.
키토산에 대한 아크릴아미드의 그라프트 공중합체 분말0.2∼0.5중량/% 를, 40℃∼50℃ 에 물 94.8 ∼98.5 중량/% 에 분산시킨후, 초산 6∼2중량/% 을 투입하여 2500∼3500rpm으로 고속정밀 교반하여, 폴리염화알루미늄 또는 액체황산알루미늄과 1: 1의 비율로 혼합하여 조성된 키토산계 수처리용 응집제 조성물을 제조한다.0.2 to 0.5 weight /% of graft copolymer powder of acrylamide to chitosan was dispersed in 94.8 to 98.5 weight /% of water at 40 to 50 ° C, and 6 to 2 weight /% of acetic acid was added to 2500 to 3500 rpm. After stirring at high speed with precision, a flocculant composition for chitosan-based water treatment was prepared by mixing polyaluminum chloride or liquid aluminum sulfate in a ratio of 1: 1.
상기와 같이 혼합된 본 발명의 키토산계 수처리용 응집제 조성물은 폐자원을 활용할 수 있는 고분자 재료의 응집제를 합성하기 위하여 갑오징어의 뼈나 게에 존재하는 키틴을 이용한 키토산계 수처리용 응집제를 제조하는데 있다.The chitosan-based water treatment flocculant composition of the present invention mixed as described above is to prepare a flocculant for chitosan-based water treatment using chitin present in bone or crab of cuttlefish in order to synthesize a flocculant of a polymer material that can utilize waste resources.
이하, 본 발명을 실시예에 의거하여 아래와 같이 상세하게 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail as follows based on an Example.
실시예 1Example 1
키토산계 공중합체와 폴리염화알루미늄으로 혼합하여 조성된 키토산계 수처리용 응집제 조성물의 제조Preparation of chitosan-based water treatment flocculant composition mixed with chitosan-based copolymer and polyaluminum chloride
1. 키토산계 공중합체의 제조1. Preparation of Chitosan Copolymer
(응집제 합성)키토산 4중량/%과 , 아크릴아미드0.2 중량/%과 , 초산 22중량/%를 플라스크에 넣고, 30℃에서 1 시간동안 역류시키면서 팽창 (Swelling) 시키고, 이때, N2가스를 반응기에 통과시킨다.(Coagulant synthesis) Chitosan 4 wt /% and acrylamide 0.2 wt /% and charged into the same flask was charged acetic acid 22 w / w%, while reflux at 30 ℃ for 1 hour and swelling (Swelling), At this time, the reactor the N 2 gas Pass it on.
상기의 용액에 개시제인 세륨 암모늄 니트레이트를 0.3중량/%를 첨가하고, N2가스하에 40℃에서 3시간동안 반응시킨다.0.3 weight /% of cerium ammonium nitrate as an initiator is added to the solution, and reacted for 3 hours at 40 ° C. under N 2 gas.
상기와 같이 3시간동안 반응된 반응용액에 소량의 물 160중량/%를 첨가하고, 아세톤 500중량/%를 과량 첨가한후, 석출된 물질을 여과한 다음 40℃ 로 진공건조하여 키토산의 공중합체 분말 4중량/% 을 수득한다.After adding a small amount of water 160% by weight to the reaction solution reacted for 3 hours as described above, 500% by weight /% of acetone is added, the precipitated material is filtered and then vacuum dried to 40 ℃ to copolymer of chitosan 4 wt /% of powder is obtained.
2. 폴리염화 알루미늄의 제조2. Preparation of Aluminum Polychloride
원료인 수산화알루미늄 4중량/%와 염산 8중량/% 를 계량하여, 수산화알루미늄과 염산을 혼합하여 슬러리화한다.4 weight /% of aluminum hydroxide as raw material and 8 weight /% of hydrochloric acid are measured, and aluminum hydroxide and hydrochloric acid are mixed and slurried.
상기와 같이 혼합된 슬러리화된 원료를 밀폐용기인 가압반응기내에서 스팀을 가하여 반응시키고, 반응이 완료되면 반응물 중의 유리 염산을 제거하기 위해 탄산 소다 0.4중량/%를 가하여 중화시킨다.The slurryed raw materials mixed as described above are reacted by adding steam in a pressurized reactor, which is a closed vessel, and neutralized by adding 0.4 wt /% of sodium carbonate to remove free hydrochloric acid in the reactants.
상기 중화가 완료되면 반응물중 불순물 및 미반응물을 제거하기 위하여 필터프레스로 여과시킨다.Upon completion of the neutralization, the filter is filtered through a filter press to remove impurities and unreacted reactants.
여과된 반응물에 황산소다 1.6 중량/%을 가하여 안정화시킨후, 물 50중량/%으로 제품의 농도를 조절한후에 농도조절이 끝난 폴리염화알루미늄 60중량/%이 제조된다.After stabilizing by adding 1.6% by weight of sodium sulfate to the filtered reaction, after adjusting the concentration of the product to 50% by weight of water, 60% by weight of poly aluminum chloride is adjusted.
상기와 같이 제조된 키토산 공중합체 분말 0.3중량/%과 폴리염화알루미늄 100중량/%을, 40℃∼50℃의 가열된 물에 96.7중량/%의 키토산 공중합체 분말을 용해조에 분산시킨후, 초산 3중량/% 을 투입하여 일정 농도가 되도록 고속정밀 교반하여 완전하게 용해시킨다.0.3 wt /% of chitosan copolymer powder prepared as described above and 100 wt /% of polyaluminum chloride were dispersed in a dissolution tank with 96.7 wt /% of chitosan copolymer powder in heated water at 40 ° C to 50 ° C. 3 wt% /% of the solution is dissolved completely by high-speed precision stirring to a certain concentration.
완전히 용해된 키토산계 용해액과 폴리염화알루미늄 완제품을 1: 1 비율 및 기타 여러 가지 비율로 혼합하여 폴리염화알루미늄을 갖는 키토산계 수처리용 응집제 조성물을 완성한다.The completely dissolved chitosan-based solution and the finished polyaluminum chloride product are mixed in a 1: 1 ratio and various other ratios to complete a flocculant composition for chitosan-based water treatment having polyaluminum chloride.
실시예 2Example 2
실시예 1 과 같은 방법으로 키토산계 공중합체 및 폴리염화 알루미늄의 제조를 동일하게 제조한다.In the same manner as in Example 1, chitosan-based copolymers and polyaluminum chloride were prepared in the same manner.
상기와 같이 제조된 키토산 공중합체 분말 0.4중량/%과 폴리염화알루미늄 200중량/%을, 40℃∼50℃의 가열된 물에 97.6중량/%의 키토산 공중합체 분말을 용해조에 분산시킨후, 초산 2중량/% 을 투입하여 일정 농도가 되도록 고속정밀 교반하여 완전하게 용해시킨다.0.4 wt /% of chitosan copolymer powder and 200 wt /% of polyaluminum chloride prepared as described above were dispersed in a dissolution tank with 97.6 wt /% of chitosan copolymer powder in heated water at 40 ° C to 50 ° C, followed by acetic acid. 2 wt /% is added and completely dissolved by high-speed precise stirring to achieve a constant concentration.
완전히 용해된 키토산계 용해액과 폴리염화알루미늄 완제품을 1: 2 비율 및 기타 여러 가지 비율로 혼합하여 폴리염화알루미늄을 갖는 키토산계 수처리용 응집제 조성물을 완성한다.The completely dissolved chitosan-based solution and the finished polyaluminum chloride product are mixed in a 1: 2 ratio and various other ratios to complete a flocculant composition for chitosan-based water treatment having polyaluminum chloride.
실시예 3Example 3
실시예 1 과 같은 방법으로 키토산계 공중합체 및 폴리염화 알루미늄의 제조를 동일하게 제조한다.In the same manner as in Example 1, chitosan-based copolymers and polyaluminum chloride were prepared in the same manner.
상기와 같이 제조된 키토산 공중합체 분말 0.2중량/%과 폴리염화알루미늄 50중량/%을, 40℃∼50℃의 가열된 물에 95.8중량/%의 키토산 공중합체 분말을 용해조에 분산시킨후, 초산 4중량/% 을 투입하여 일정 농도가 되도록 3000rpm으로 고속정밀 교반하여 완전하게 용해시킨다.0.2 wt /% of the chitosan copolymer powder prepared above and 50 wt /% of the polyaluminum chloride were dispersed in a dissolution tank with 95.8 wt /% of chitosan copolymer powder in heated water at 40 ° C to 50 ° C, followed by acetic acid. 4 wt /% is added and completely dissolved by high-speed precision stirring at 3000 rpm to achieve a constant concentration.
완전히 용해된 키토산계 용해액과 폴리염화알루미늄 완제품을 1: 0.5 비율 및 기타 여러 가지 비율로 혼합하여 폴리염화알루미늄을 갖는 키토산계 수처리용 응집제 조성물을 완성한다.The completely dissolved chitosan-based solution and the finished polyaluminum chloride product are mixed in a 1: 0.5 ratio and various other ratios to complete a flocculant composition for chitosan-based water treatment having polyaluminum chloride.
상기와 같이 실시예1∼3에서 얻어진 조성물을 아래와 같이 실험하였다.As described above, the compositions obtained in Examples 1 to 3 were tested as follows.
실험예 1Experimental Example 1
실시예 1에 의해, 키토산계 용해액과 폴리염화알루미늄을 1 : 1의 비율로 혼합한 경우에의 키토산계 폴리염화알루미늄은 안정성이 매우 높아 장시간 보관시에도 변질되지 않았으며, 정수장의 원수처리 시험결과 폴리염화알루미늄 (P.A.C) 보다 청정도 및 잔류 알루미늄에 있어서, 하기의 표 1에서와 같이 월등하게 우수한 것임을 알수 있다.According to Example 1, chitosan-based aluminum chloride when the chitosan-based solution and polyaluminum chloride were mixed at a ratio of 1: 1 was very stable and did not deteriorate even when stored for a long time. Results It can be seen that in the cleanliness and residual aluminum than polyaluminum chloride (PAC), as shown in Table 1 below it is superior.
실험예 2Experimental Example 2
실시예 2에 의해, 키토산계 용해액과 폴리염화알루미늄을 1 : 2의 비율로 혼합한 경우에의 키토산계 폴리염화알루미늄은 안정성이 매우 떨어질뿐만 아니라, 장시간 보관시에는 변질이 다소 심하게 나타났으며, 정수장의 원수처리 시험결과 폴리염화알루미늄 (P.A.C) 보다 청정도 및 잔류 알루미늄에 있어서, 매우 좋지 않은 결과를 나타내었다.According to Example 2, chitosan-based polyaluminum chloride when the chitosan-based solution and polyaluminum chloride were mixed at a ratio of 1: 2 was very poor in stability, and deterioration was somewhat severe when stored for a long time. The result of raw water treatment test of water purification plant showed very poor result in cleanliness and residual aluminum than polyaluminum chloride (PAC).
실험예 3Experimental Example 3
실시예 3에 의해, 키토산계 용해액과 폴리염화알루미늄을 1 : 0.5의 비율로 혼합한 경우에의 키토산계 폴리염화알루미늄은 안정성이 매우 떨어질뿐만 아니라, 장시간 보관시에는 변질이 다소 심하게 나타났으며, 정수장의 원수처리 시험결과 폴리염화알루미늄 (P.A.C) 보다 청정도 및 잔류 알루미늄에 있어서, 실험예 2와 같이 매우 좋지 않은 결과를 나타내었다.According to Example 3, the chitosan-based aluminum chloride when the chitosan-based solution and polyaluminum chloride were mixed at a ratio of 1: 0.5 was not only very poor in stability, but also deteriorated somewhat when stored for a long time. As a result of raw water treatment test of water purification plant, the cleanliness and residual aluminum than polyaluminum chloride (PAC) showed very poor results as in Experimental Example 2.
상기 표 1 과 같은 결과는 시험조건을 120rpm 으로 2분간 급속 교반하고, 50∼60 rpm 으로 10 분간 완속 교반한 다음 10분 침강시킨후, 상층액에 실험 약품을 처리하여 상층수 100ml을 채취하여 시험한 것이다.The results as shown in Table 1 were rapidly stirred at 120 rpm for 2 minutes, slow stirring at 50 to 60 rpm for 10 minutes, and then allowed to settle for 10 minutes, and then treated with experimental chemicals in the supernatant to extract 100 ml of supernatant. It is.
실험결과를 살펴보면, 기존의 폴리염화알루미늄(P.A.C)은 처리수의 청정도가 1.5 ppm 이고 처리수의 잔류 알루미늄인 0.25 ppm으로 나타났으며, 폴리수산화염화규산알루미늄 (P.A.C.S) 은 처리수의 청정도가 2.3 ppm이고, 처리수의 잔류 알루미늄을 살펴보면, 폴리염화알루미늄(P.A.C)보다 월등하게 많은 0.28ppm으로 나타났다.The results of the experiments showed that the conventional polyaluminum chloride (PAC) was treated with 1.5 ppm of clean water and 0.25 ppm, the residual aluminum of the treated water. In terms of ppm, the residual aluminum in the treated water was 0.28 ppm, which is much higher than that of polyaluminum chloride (PAC).
또한, 키토산계 공중합체 응집제 단독으로 한 것은 처리수의 청정도가 3.5ppm이고 처리수의 잔류알루미늄은 0.5ppm으로 나타났다.In addition, the chitosan copolymer coagulant alone showed 3.5 ppm of clean water and 0.5 ppm of residual aluminum in the treated water.
따라서, 시험결과를 보면, 본 발명의 실험예 1 과 같은 조성비율로 인해 처리수의 청정도 및 처리수의 잔류알루미늄정도가 가장효과적으로 나타나는 것을 알수 있다.Therefore, from the test results, it can be seen that due to the same composition ratio as Experimental Example 1 of the present invention, the cleanliness of the treated water and the residual aluminum degree of the treated water appear most effectively.
그반면에 실험예2,3과 같이 혼합비율을 서로 다르게 하였을 경우에는 처리수의 청정도 및 처리수의 알루미늄농도가 높게 나타나 좋지않은 결과를 나타내고 있다.On the other hand, when the mixing ratios were different from each other as in Experimental Examples 2 and 3, the cleanliness of the treated water and the aluminum concentration of the treated water were high.
상기와 같이 실험예 1 에 나타난 바와 같이, 본 발명의 키토산계 폴리염화알루미늄은 처리수의 청정도는 1.0 ppm으로 낮게 나타났으며, 처리수의 잔류 알루미늄 또한 0.15 ppm 으로 6가지의 응집제중 가장 효과가 월등히 높게 나타난 것임이 입증되고 있다.As shown in Experiment 1, the chitosan-based polyaluminum chloride of the present invention showed low cleanliness of 1.0 ppm, and the residual aluminum of the treated water was also 0.15 ppm. It is proven to be much higher.
본 고안의 또다른 실시예를 아래와 같이 나타낸다.Another embodiment of the present invention is shown below.
실시예 1Example 1
키토산에 대한 아크릴아미드의 그라프트 공중합체와 액체 황산알루미늄으로 혼합하여 조성된 키토산계 수처리용 응집제 조성물의 제조Preparation of a Coagulant Composition for Chitosan Water Treatment by Mixing with Graft Copolymer of Acrylamide to Chitosan and Liquid Aluminum Sulfate
1. 키토산에 대한 아크릴 아미드의 그라프트 공중합제의 제조1. Preparation of Graft Copolymer of Acrylamide for Chitosan
(응집성 합성) 키토산 4중량/%과 , 아크릴아미드0.2 중량/%과 , 초산 22중량/%를 플라스크에 넣고, 30℃에서 1 시간동안 역류시키면서 팽창 (Swelling) 시키고, 이때, N2가스를 반응기에 통과시킨다.(Coagulation Synthesis) Chitosan 4% by weight, 0.2% by weight of acrylamide and 22% by weight of acetic acid were placed in a flask, and swelled while refluxing at 30 DEG C for 1 hour, wherein N 2 gas was reacted with the reactor. Pass it on.
상기의 용액에 개시제인 세륨 암모늄 니트레이트를 0.3중량/%을 첨가하고, N2가스하에 40℃에서 3시간동안 반응시킨다.0.3 weight /% of cerium ammonium nitrate as an initiator is added to the solution, and reacted at 40 ° C. for 3 hours under N 2 gas.
상기와 같이 3시간동안 반응된 반응용액에 소량의 물을 160중량/%을 첨가하고, 아세톤을 500중량/%을 과량 첨가한후 석출된 물질을 여과한 다음 40℃ 로 진공건조하여 키토산의 공중합체 분말을 4 중량/%을 수득한다.160 wt /% of a small amount of water was added to the reaction solution reacted for 3 hours as described above, 500 wt /% of acetone was added, and the precipitated material was filtered and vacuum-dried at 40 ° C. to airborne chitosan. 4 weight /% of coalesced powder is obtained.
2. 액체 황산알루미늄의 제조2. Preparation of Liquid Aluminum Sulfate
원료인 수산화알루미늄과 황산을 계량하여 수산화알루미늄 4중량/%와 황산 6.8중량/%와 물 40중량/%을 반응기에 투입하여 반응시킨후, 반응이 완료된 반응물을 반응기에서 배출한 다음 물을 가하여 농도를 조절한다.After weighing aluminum hydroxide and sulfuric acid as raw materials, 4% by weight of aluminum hydroxide, 6.8% by weight of sulfuric acid, and 40% by weight of water were added to the reactor for reaction, and then the reaction product was discharged from the reactor, and then water was added. Adjust
상기 농도조절이 완료된 용액에서 불순물 및 미반응물을 제거하기 위하여 필터프레스로 여과시켜 액체 황산 알루미늄 60중량%를 제조한다.60% by weight of liquid aluminum sulfate was prepared by filtration with a filter press in order to remove impurities and unreacted substances from the concentration control solution.
상기와 같이 제조된 키토산의 공중합체 분말 0.3중량/%과 액체 황산알루미늄 100중량/%을, 40℃∼50℃의 가열된 물 97.7중량/% 에 키토산 공중합체 분말을 용해조에 분산시킨후, 초산 2중량/% 을 투입하여 일정농도가 되도록 3000 rpm 으로 고속정밀 교반하여 완전히 용해시킨다.0.3 wt /% of the copolymer powder of chitosan prepared as described above and 100 wt /% of the liquid aluminum sulfate were dispersed in the dissolution tank in the chitosan copolymer powder in 97.7 wt /% of heated water at 40 ° C to 50 ° C, followed by acetic acid. 2 wt /% is added and completely dissolved by high speed stirring at 3000 rpm to maintain a constant concentration.
상기와 같이 완전히 용해된 키토산계 용해액과 액체황산알루미늄 완제품을 1 : 1 의 비율 및 기타 여러 가지 비율로 혼합하여 액체황산알루미늄을 갖는 키토산계 수처리용 응집제 조성물을 완성한다.The completely dissolved chitosan-based solution and the finished liquid aluminum sulfate product are mixed in a ratio of 1: 1 and other various ratios to complete the flocculant composition for chitosan-based water treatment having liquid aluminum sulfate.
실시예 2Example 2
실시예 1 과 같은 방법으로 키토산계 공중합체 및 액체황산알루미늄의 제조를 동일하게 제조한다.In the same manner as in Example 1, chitosan-based copolymers and liquid aluminum sulfate were prepared in the same manner.
상기와 같이 제조된 키토산 공중합체 분말 0.3중량/%과 액체황산알루미늄 200중량/%을, 40℃∼50℃의 가열된 물에 98.7중량/%의 키토산 공중합체 분말을 용해조에 분산시킨후, 초산 1중량/% 을 투입하여 일정 농도가 되도록 3000rpm 으로 고속정밀 교반하여 완전하게 용해시킨다.0.3 wt /% of chitosan copolymer powder prepared above and 200 wt /% of liquid aluminum sulfate were dispersed in a dissolution tank with 98.7 wt /% chitosan copolymer powder in heated water at 40 ° C to 50 ° C, followed by acetic acid. 1 wt /% is added and completely dissolved by high-speed precision stirring at 3000 rpm to achieve a constant concentration.
완전히 용해된 키토산계 용해액과 액체황산알루미늄 완제품을 1: 2 비율 및 기타 여러 가지 비율로 혼합하여 액체황산알루미늄을 갖는 키토산계 수처리용 응집제 조성물을 완성한다.The completely dissolved chitosan-based solution and the finished liquid aluminum sulfate product are mixed in a 1: 2 ratio and various other ratios to complete a flocculant composition for chitosan-based water treatment having liquid aluminum sulfate.
실시예 3Example 3
실시예 1 과 같은 방법으로 키토산계 공중합체 및 액체황산알루미늄의 제조를 동일하게 제조한다.In the same manner as in Example 1, chitosan-based copolymers and liquid aluminum sulfate were prepared in the same manner.
상기와 같이 제조된 키토산 공중합체 분말 0.3중량/%과 액체황산알루미늄 50중량/%을, 40℃∼50℃의 가열된 물에 98.7중량/%의 키토산 공중합체 분말을 용해조에 분산시킨후, 초산 1중량/% 을 투입하여 일정 농도가 되도록 3000rpm 으로 고속정밀 교반하여 완전하게 용해시킨다.0.3 wt /% of chitosan copolymer powder prepared above and 50 wt /% of liquid aluminum sulfate were dispersed in a dissolution tank with 98.7 wt /% chitosan copolymer powder in heated water at 40 ° C to 50 ° C, followed by acetic acid. 1 wt /% is added and completely dissolved by high-speed precision stirring at 3000 rpm to achieve a constant concentration.
완전히 용해된 키토산계 용해액과 액체황산알루미늄 완제품을 1: 0.5 비율 및 기타 여러 가지 비율로 혼합하여 액체황산알루미늄을 갖는 키토산계 수처리용 응집제 조성물을 완성한다.The completely dissolved chitosan-based solution and the finished liquid aluminum sulfate product are mixed in a 1: 0.5 ratio and various other ratios to complete a flocculant composition for chitosan-based water treatment having liquid aluminum sulfate.
실험예 1Experimental Example 1
실시예 1에 의해, 키토산계 용해액과 액체황산알루미늄을 1 : 1의 비율로 혼합한 경우의 키토산계 액체황산알루미늄은 안정성이 매우 높아 장시간 보관시에도 변질되지 않았으며, 정수장의 원수처리 시험결과 액체황산알루미늄 (L.A.S) 보다 청정도 및 잔류 알루미늄에 있어서, 하기의 표 2에서와 같이 월등하게 우수한 것임을 알수 있다.According to Example 1, the chitosan-based liquid aluminum sulfate when the chitosan-based solution and liquid aluminum sulfate were mixed at a ratio of 1: 1 was very stable and did not deteriorate even when stored for a long time. It can be seen that in the cleanliness and residual aluminum than liquid aluminum sulfate (LAS), as shown in Table 2 below it is superior.
실험예 2Experimental Example 2
실시예 2에 의해, 키토산계 용해액과 액체황산알루미늄을 1 : 2의 비율로 혼합한 경우에의 키토산계 액체황산알루미늄은 안정성이 매우 떨어질뿐만 아니라, 장시간 보관시에는 변질이 다소 심하게 나타났으며, 정수장의 원수처리 시험결과 액체황산알루미늄 (L.A.S) 보다 청정도 및 잔류 알루미늄에 있어서, 매우 좋지 않은 결과를 나타내었다.According to Example 2, the chitosan-based liquid aluminum sulfate when the chitosan-based solution and the liquid aluminum sulfate were mixed at a ratio of 1: 2 was not very stable, and the deterioration was somewhat severe when stored for a long time. The result of raw water treatment test of water purification plant showed very poor result in cleanliness and residual aluminum than liquid aluminum sulfate (LAS).
실험예 3Experimental Example 3
실시예 3에 의해, 키토산계 용해액과 액체황산알루미늄을 1 : 0.5의 비율로 혼합한 경우에의 키토산계 폴리염화알루미늄은 안정성이 매우 떨어질뿐만 아니라, 장시간 보관시에는 변질이 다소 심하게 나타났으며, 정수장의 원수처리 시험결과 액체황산알루미늄 (L.A.S) 보다 청정도 및 잔류 알루미늄에 있어서, 실험예 2와 같이 매우 좋지 않은 결과를 나타내었다.According to Example 3, the chitosan-based polyaluminum chloride when the chitosan-based solution and the liquid aluminum sulfate were mixed at a ratio of 1: 0.5 was not very poor in stability, and deterioration was somewhat severe when stored for a long time. The result of raw water treatment test of water purification plant showed very poor result as in Experimental Example 2 in cleanliness and residual aluminum than liquid aluminum sulfate (LAS).
상기 표 2 와 같은 결과는, 시험조건을 120rpm 으로 2분간 급속 교반하고, 50∼60 rpm 으로 10 분간 완속 교반한 다음 10분 침강시킨후, 상층액에 실험 약품을 처리하여 상층수 100ml을 채취하여 시험한 것이다.As shown in Table 2, the test conditions were rapidly stirred at 120 rpm for 2 minutes, slowly stirred at 50 to 60 rpm for 10 minutes, and then allowed to settle for 10 minutes, and then treated with experimental chemicals in the supernatant, 100 ml of supernatant was collected. It is a test.
실험결과를 살펴보면, 기존의 액체황산알루미늄(L.A.S)은 처리수의 청정도가 2.3 ppm 이고 처리수의 잔류 알루미늄DL 0.27 ppm으로 나타났는 반면에, 본 발명의 키토산계 액체황산알루미늄의 처리수의 청정도는 1.5 ppm으로 낮게 나타났으며, 처리수의 잔류 알루미늄 또한 0.18 ppm 으로 기존의 액체황산알루미늄 (L.A.S) 의 응집제보다 본 발명의 키토산계 액체황산알루미늄의 응집제의 효과가 월등히 높게 나타난 것임이 입증되고 있다.As a result of the experiment, the conventional liquid aluminum sulfate (LAS) showed that the cleanliness of the treated water was 2.3 ppm and the residual aluminum DL of the treated water was 0.27 ppm, whereas the cleanliness of the treated water of the liquid chitosan-based liquid aluminum sulfate of the present invention was It was as low as 1.5 ppm, and the residual aluminum in the treated water was also 0.18 ppm, and it was proved that the effect of the flocculant of the liquid chitosan liquid aluminum sulfate of the present invention was much higher than that of the conventional flocculant of liquid aluminum sulfate (LAS).
그반면 실험예2,3은 처리수의 청정도, 잔류알루미늄이 가장높게 나타나 매우 좋지 않은 결과를 볼 수 있다.On the other hand, in Experimental Examples 2 and 3, the cleanliness of the treated water and the residual aluminum are the highest, and very poor results can be seen.
따라서, 본 발명의 키토산계 수처리용 응집제 조성물에 의해 폐자원을 활용하여 갑오징어의 뼈나 게에 존재하고 있는 키틴을 이용한 키토산계 응집제를 제조하였으며, 또한, 제조된 키토산계 수처리용 응집제 조성물로 오폐수를 정화시킬수 있어 기존의 응집제에 비해 청정도 및 잔류 알루미늄에 대해서 매우 우수한 효과가 있다.Therefore, the chitosan-based water treatment flocculant composition of the present invention was prepared using chitosan-based flocculant using chitin present in bone or crab of cuttlefish by using waste resources. It can be purified and has a very good effect on the cleanliness and residual aluminum compared to the existing flocculant.
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| KR101025780B1 (en) * | 2008-12-01 | 2011-04-04 | 한밭대학교 산학협력단 | The Coagulation composition which contains chitosan and sulfate compounds for water treatment and a method of preparing thereof |
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| KR101169563B1 (en) | 2012-02-13 | 2012-07-27 | 박영구 | An inorganic coagulant comprising waste plaster, starfish powder, shell powder and clay mineral |
| KR102025047B1 (en) * | 2019-05-23 | 2019-09-24 | 황준하 | Functional Air Cleaner Using Water Curtain Filter |
-
1998
- 1998-12-31 KR KR1019980064159A patent/KR100307431B1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100456506B1 (en) * | 2002-01-16 | 2004-11-09 | 주식회사 자광 | Manufacturing method of Water soluble chitosan blendmer for heavy metal binding agent and itself produced using the same |
| KR101025780B1 (en) * | 2008-12-01 | 2011-04-04 | 한밭대학교 산학협력단 | The Coagulation composition which contains chitosan and sulfate compounds for water treatment and a method of preparing thereof |
| KR20150059762A (en) * | 2012-09-21 | 2015-06-02 | 미쓰비시덴키 가부시키가이샤 | Analog feedback amplifier |
| CN105236499A (en) * | 2015-10-13 | 2016-01-13 | 桂林市春晓环保科技有限公司 | Domestic sewage purification agent |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100307431B1 (en) | 2001-11-30 |
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