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公开(公告)号:KR100328088B1
公开(公告)日:2002-05-15
申请号:KR1019970073579
申请日:1997-12-24
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
Abstract: PURPOSE: A method and an apparatus for treating wastewater using coke dust generated for coke dry quenching (CDQ) as adsorbent are provided. CONSTITUTION: The method comprises the steps of injecting coke dust with a specific surface area of greater than 15 m¬2/g into wastewater; mixing wastewater and coke dust in a mixing tank(43) by a screw(42) for 50 to 60 min; settling coke dust in a settling tank(44); separating sludge from supernatant water in a sludge settling tank(48); recycling settled coke dust; and filtering supernatant water by a membrane(46) with a pore size of 0.01 to 2 μm under operation pressure of 0.5 to 2 bar.
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公开(公告)号:KR1020020017332A
公开(公告)日:2002-03-07
申请号:KR1020000050581
申请日:2000-08-30
Applicant: 재단법인 포항산업과학연구원
IPC: G01N1/10
Abstract: PURPOSE: A water sampler for rivers and the sea is provided to avoid the influence of a strong water stream at rivers or the sea and to easily sample water from the deep part of rivers and the ocean. CONSTITUTION: A water sampler for rivers and the sea comprises a water sampling container(20) having four water sampling holes(4) formed on the upper and lower portions of an outer wall and four fixed frames(5a,5b) prepared on the upper and lower outer faces, a separator(30) formed in the upper center of the water sampling container and connected to a wire(11a) guiding a falling weight(6), a pillar(14), and four tension wires(8a,8b), a locking plate(15) prepared with rubber caps(2) and connected to the tension wires, and a weight(10) connected to a wire(11b) at the central lower portion of the water sampling container. According to the own weight and the weight of the weight, the sampler is buried in the water regardless of the influence of water pressure.
Abstract translation: 目的:为河流和海洋提供一个水采取器,以避免强大的水流在河流或海洋的影响,并且容易地从河流和海洋的深部采样水。 构成:用于河流和海洋的取水器包括一个水采样容器(20),其具有形成在外壁的上部和下部上的四个取水孔(4)和在上部制备的四个固定框架(5a,5b) 和下外表面,形成在取水容器的上中心的分隔件(30),其连接到引导落锤(6)的导线(11a),支柱(14)和四根张力线(8a,8b) ),用橡胶帽(2)制备并连接到张力线的锁定板(15)和连接到水采样容器的中心下部的线(11b)的重物(10)。 根据自重和重量,取样器埋在水中,不管水压的影响如何。
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公开(公告)号:KR1020010017300A
公开(公告)日:2001-03-05
申请号:KR1019990032747
申请日:1999-08-10
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
IPC: G01N33/18
Abstract: PURPOSE: An underwater dissolved oxygen concentration measuring method is provided to prevent accuracy from lowering and to maintain the merit of a direct analysis on the spot. CONSTITUTION: A Winkler method measures an underwater dissolved oxygen concentration. Iodine corresponding an underwater dissolved oxygen concentration is liberated by dissolving manganese hydroxide with acid and reducing by an iodine ion. The liberated iodine searches a maximum light absorbance frequency of a color degree occurred among samples. A calibration curve of an absorbance and a dissolved oxygen concentration of the samples adequately regulating a dissolved oxygen concentration is drawn. The absorbance of a sample for measuring a dissolved oxygen concentration is measured. The absorbance of the sample is regulated to the dissolved oxygen concentration from the calibration curve. The dissolved oxygen amount is decided by an absorption method not by sodium thiosulfate. Therefore, time and effort for deciding are reduced and the accuracy is maintained. A dissolved oxygen concentration is easily measured on the spot.
Abstract translation: 目的:提供水下溶解氧浓度测量方法,以防止精度降低,并保持现场直接分析的优点。 构成:温克勒法测量水中溶解氧浓度。 对应于水中溶解氧浓度的碘通过用酸溶解氢氧化锰并通过碘离子还原而释放。 释放的碘检索样品中发生的色度的最大吸光度频率。 绘制充分调节溶解氧浓度的样品的吸光度和溶解氧浓度的校准曲线。 测量用于测量溶解氧浓度的样品的吸光度。 将样品的吸光度从校准曲线调节为溶解氧浓度。 溶解氧量由不是硫代硫酸钠的吸收法决定。 因此,减少了决策的时间和精力,并保持了准确性。 现场容易测量溶解氧浓度。
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公开(公告)号:KR2019980042961U
公开(公告)日:1998-09-25
申请号:KR2019960056067
申请日:1996-12-24
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원
IPC: G01N1/10
Abstract: 본고안은적정법에의한액체시료내황이온(S) 정량시사용하는적정장치의개선에관한것이다. 본고안에따른적정장치는교반기(1)의구동축(2) 상단에톱니형의모서리부(8)들을가진십자형의교반자(4)를결합설치하고그 외주에상부가점차좁아지는형태로되고그 끝부분에용기입구(11)를형성한적정용기(9)를결합설치하여서된 구성으로되어있다. 이러한구성에의해본 고안의장치는기존의적정장치에비해적정의정밀도및 정확도를향상시키고, 적정소요시간을단축시킬수 있는효과를제공한다.
Abstract translation: 纸提案涉及滴定仪用于通过滴定方法定量液体试样naehwang离子(S)使用的改进。 在本文中,根据滴定仪(1)uigu轴(2)联接所述搅拌器的搅拌器(4)的横形,在安装顶部的锯齿的边缘部分8和在其上部中的外周逐渐缩小的一种形式,即 耦合,其在端部形成了一个容器入口11适当的容器9是在配置hayeoseo安装。 在这样的配置设备的出有史以来,以改善相对于传统的滴定公平的精度和准确度,并提供减少sikilsu适当的时间的效果。
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公开(公告)号:KR101909724B1
公开(公告)日:2018-12-18
申请号:KR1020160142039
申请日:2016-10-28
Applicant: 재단법인 포항산업과학연구원
Abstract: 염화 리튬 수용액의 제조 방법, 수산화 리튬의 제조 방법 및 탄산 리튬의 제조 방법에 관한 것으로, 리튬을 포함하는 고상의 원료 물질을 준비하는 단계; 상기 리튬을 포함하는 고상의 원료 물질과 염소 원료 물질을 혼합 후 가열하는 단계; 상기 가열 단계에 의해, 발생하는 기체 상의 염화 리튬을 응축시켜 응축 염화 리튬을 수득하는 단계; 및 상기 응축된 염화 리튬을 염화 리튬 수용액으로 전환하는 단계;를 포함하는 염화 리튬 수용액의 제조 방법을 제공할 수 있다.
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公开(公告)号:KR101909725B1
公开(公告)日:2018-10-18
申请号:KR1020160142178
申请日:2016-10-28
Applicant: 재단법인 포항산업과학연구원
Abstract: 염화리튬수용액의제조방법, 수산화리튬의제조방법및 탄산리튬의제조방법에관한것으로, 리튬을포함하는고상의원료물질을준비하는단계; 상기리튬을포함하는고상의원료물질과염소원료물질을혼합후 가열하는단계; 상기가열단계에의해, 발생하는기체상의염화리튬을응축시켜응축염화리튬을수득하는단계; 및상기응축된염화리튬을염화리튬수용액으로전환하는단계;를포함하는염화리튬수용액의제조방법을제공할수 있다.
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