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公开(公告)号:KR100458402B1
公开(公告)日:2004-11-26
申请号:KR1020020084736
申请日:2002-12-27
Applicant: 한국과학기술연구원
IPC: C02F1/26
Abstract: PURPOSE: A solvent extraction method for recovering heavy metals from electroplating wastewater containing heavy metals such as iron, zinc, copper and nickel by using 2-ethylhexyl hydrogen 2-ethylhexyl phosphate as an extractant is provided. CONSTITUTION: In a method for recovering heavy metals including iron, zinc, copper and nickel from electroplating wastewater by solvent extraction, the method comprises first extraction step of recovering iron and zinc by extracting iron and zinc from the electroplating wastewater using an organic solution prepared by mixing 2-ethylhexyl hydrogen 2-ethylhexyl phosphate in the non-saponification state as an extractant with organic solvent together with third phase preventing agent; and second extraction step of recovering copper and nickel by extracting copper and nickel from an electroplating wastewater from which iron and zinc are extracted in the first extraction step using an organic solution prepared by mixing the extractant in the saponification state with organic solvent together with third phase preventing agent.
Abstract translation: 目的:提供一种溶剂萃取方法,以2-乙基己基氢氧化2-乙基己基酯作为萃取剂,从含有重金属如铁,锌,铜和镍的电镀废水中回收重金属。 本发明涉及一种用电解废水中的铁,锌,铜和镍通过溶剂萃取来回收重金属的方法,该方法包括第一萃取步骤,通过使用有机溶液从电镀废水中萃取铁和锌来回收铁和锌 将非皂化状态的2-乙基己基氢氧化2-乙基己基酯作为萃取剂与有机溶剂一起与第三相防止剂混合; 和第二提取步骤,通过使用通过将皂化状态的萃取剂与有机溶剂混合而制备的有机溶液与第三阶段一起从在第一萃取步骤中萃取铁和锌的电镀废水中萃取铜和镍来回收铜和镍 防止剂。
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公开(公告)号:KR1020030083965A
公开(公告)日:2003-11-01
申请号:KR1020020022397
申请日:2002-04-24
Applicant: 한국과학기술연구원
IPC: F15C1/04
Abstract: PURPOSE: A flow control device is provided to precisely and uniformly control the flow of fluid by supplying the measured fluid to a position head control container according to a pulse signal of a vibrator. CONSTITUTION: A flow control device is composed of a fluid storing container(100), a measuring container(10) connected to the fluid storing container by a first pipe and temporarily storing measured fluid, a flow restriction unit(16) restricting the fluid of the measuring container, a position head control container(50) connected to the measuring container by a second pipe, a direction control unit(20) coupled with the first pipe and the second pipe, and a control unit electrically connected to a vibrator and controlling the direction control unit according to a pulse signal of the vibrator. The position head control container receives the fluid from the measuring container, and discharges the fluid through a third pipe at regular flow rates. The direction control unit controls the flow direction of the fluid.
Abstract translation: 目的:提供流量控制装置,通过根据振动器的脉冲信号将测量的流体提供给位置头控制容器来精确和均匀地控制流体流动。 构成:流量控制装置由流体存储容器(100),通过第一管连接到流体容纳容器并临时存储被测量的流体的测量容器(10)构成;流量限制单元(16) 测量容器,通过第二管连接到测量容器的位置头控制容器(50),与第一管和第二管联接的方向控制单元(20),以及与振动器电连接并控制的控制单元 所述方向控制单元根据所述振动器的脉冲信号。 位置头控制容器从测量容器接收流体,并以常规流量通过第三管排出流体。 方向控制单元控制流体的流动方向。
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公开(公告)号:KR1019980035667A
公开(公告)日:1998-08-05
申请号:KR1019960054077
申请日:1996-11-14
Applicant: 한국과학기술연구원
IPC: C02F5/00
Abstract: 본 발명은 산업 폐수를 증발 농축기를 사용하여 처리하는 경우에 있어서 야기되는 농축기 내의 스케일 부착 방지 방법에 관한 것이다. 본 발명의 방법은 증발 농축기에 유입될 폐수에 대해 pH를 2 내지 10 범위로 조절하여 상온 내지 50 ℃ 범위에서 염화바륨을 첨가하여 30 분 내지 2 시간 동안 교반시켜 폐수 중의 황산 이온을 침전 제거시키고, 이어서 계면 활성제를 폐수 기준으로 10 ppm 내지 0.1 중량% 첨가시켜 표면 장력을 35 dyne/cm 이하로 감소시키는 처리를 수행하는 것으로 이루어진다. 본 발명의 방법에 따르면, 스케일 제거를 위해 농축기의 가동을 중지시키는 일이 없이 장기간 처리 효율을 유지시킬 수 있으며, 처리 비용이 매우 저렴하고 장치 부식 문제를 전혀 야기시키지 않는다.
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公开(公告)号:KR1019970006128B1
公开(公告)日:1997-04-24
申请号:KR1019940021750
申请日:1994-08-31
Applicant: 한국과학기술연구원
IPC: C02F1/04
Abstract: Industrial waste water is purified in the following way. (1) The step of heating the waste water in vacuum or in an atmospheric pressure to evaporate water, then cooling and condensing the evaporated water vapor. (2) The step of adjusting pH of a distilled water from 2 to 5, and of adding 0.01-1.0 weight % of hydrogen peroxide, 0.01-0.2 weight % of 2+ iron ion in room temperature or 50 deg.C, then getting reacted. Therefore, organic waste water is purified by purely physical and chemical treatment.
Abstract translation: 工业废水的净化方式如下。 (1)在真空或大气压下加热废水蒸发水的步骤,然后冷却并冷凝蒸发的水蒸气。 (2)将蒸馏水的pH从2调整为5,在室温或50℃下加入0.01〜1.0重量%的过氧化氢,0.01-0.2重量%的铁离子的步骤,得到 反应。 因此,有机废水通过纯粹的物理和化学处理来净化。
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公开(公告)号:KR1019950013313B1
公开(公告)日:1995-11-02
申请号:KR1019930006292
申请日:1993-04-15
Applicant: 한국과학기술연구원
IPC: C02F1/46
Abstract: The treating method of an industrial waste water or a waste-fill land seepage is characterized by adding 10 wt.% of a sodium chloride(NaCl) to the waste water to have pH 4-10, and oxidation decomposing a dissolved organic material of the waste water in an electrolytic tank having positive and negative electrodes at 1-200mA/cm2 current density. The positive electrode is titanium electrode, and negative electrode is a stainless steel electrode. The treating method of the waste water by the electric oxidation has a good decoloring and decodoring effect.
Abstract translation: 工业废水或废物填埋场渗漏的处理方法的特征在于,向废水中加入10重量%的氯化钠(NaCl)至pH为4-10,并且将溶解的有机物质氧化分解 具有正电极和负电极的电解槽中的废水为1-200mA / cm2电流密度。 正极为钛电极,负极为不锈钢电极。 通过电氧化处理废水的方法具有良好的脱色和消色效果。
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公开(公告)号:KR1019890002856B1
公开(公告)日:1989-08-05
申请号:KR1019860009580
申请日:1986-11-13
Applicant: 한국과학기술연구원
Abstract: The method comprises (i) calcining Jarosite at 200-600 deg.C to leach in water, (ii) neutralizing the leached solution with alk. aq. soln. for pptg. and washing the pptn, (iii) mixing pptn. with active material/additive i.e. active carbon, phosphates, gypsum, clay, zeolite, and (iv) molding and drying to have more than 20% of porosity rate.
Abstract translation: 该方法包括:(i)在200-600℃下煅烧黄铁矿浸出水中,(ii)用alk中和浸提的溶液。 水性。 SOLN。 为pptg。 并洗涤pptn,(iii)混合pptn。 活性物质/添加剂,即活性炭,磷酸盐,石膏,粘土,沸石,和(iv)成型和干燥以具有多于20%的孔隙率。
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公开(公告)号:KR1019890002035B1
公开(公告)日:1989-06-08
申请号:KR1019850000353
申请日:1985-01-22
Applicant: 한국과학기술연구원
Abstract: Extraction of nickel from the low quality laterite ore is effected by leaching electrochemically in the electrolysis bath with a separator between cathod chamber and anode chamber. Nickel is recovered from 0.01-10.0 mol. sulfuric acid solution with blowing the sulfurous acid gas. Also anode chamber consists of 0.01-10.0 mol. sulfuric acid solution including source ore powder under 10 mesh.
Abstract translation: 从低品质红土矿中提取镍是通过在电解槽中用阴极室和阳极室之间的隔膜进行电化学浸取来实现的。 镍从0.01-10.0mol回收。 硫酸溶液吹出亚硫酸气体。 阳极室也由0.01-10.0mol组成。 硫酸溶液,包括10目以下的矿石粉。
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公开(公告)号:KR100444361B1
公开(公告)日:2004-08-16
申请号:KR1020020050736
申请日:2002-08-27
Applicant: 한국과학기술연구원
IPC: C10G32/02
Abstract: PURPOSE: A method for effectively separating chlorine from waste car shredded residues remained by recovering metals including iron scrap, aluminum and copper from the shredded waste car using electrostatic separation after shredding waste car using a shredder is provided. CONSTITUTION: The method for separating chlorine from waste car shredded residues using electrostatic separation comprises the steps of obtaining a product filtered by the sieve by classifying grain sizes of the waste car shredded residues using a sieve having size of about 5 to 10 mm; obtaining a combustible product of high heat energy by air separating the product obtained through grain size classification; obtaining pulverized material of the combustible product by pulverizing the combustible product into particles having diameter of 3 mm or less; and obtaining a combustible product of high heat energy by electrostatic separating the pulverized material of the combustible product, wherein the air separation step comprises a step of primarily removing materials which are combustible, but have low heat energy such as sponge, paper and wood pieces and secondarily removing non-combustible materials such as glass and metal scraps, and weight of the combustible product of high heat energy obtained through air separation is 60 to 80% of that of a product filtered by the sieve by performing grain size classification before performing the air separation step.
Abstract translation: 目的:本发明提供一种有效地从废车碎片残余物中分离氯的方法,其通过使用粉碎机在废旧碎纸机后使用静电分离回收废碎的废车中的金属,包括废铁,铝和铜。 组成:用静电分离法从废车碎片残渣中分离氯的方法包括以下步骤:用尺寸约为5〜10mm的筛子筛分废车碎片的颗粒大小, 通过空气分离通过粒度分级获得的产品获得高热能的可燃产物; 通过将可燃产物粉碎成直径等于或小于3毫米的颗粒,获得可燃产物的粉碎物; 通过静电分离所述可燃物产品的粉碎物,得到高热能的可燃产物,其中,所述空气分离步骤包括主要去除可燃但热能低的材料如海绵,纸和木片等步骤; 其次除去玻璃和金属废料等不燃材料,通过空气分离获得的高热能可燃产物的重量为通过在进行空气前进行粒度分级由筛子过滤的产物的重量的60%至80% 分离步骤。
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