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61. 发明专利

JPS62237908A FILTER MODULE FOR HOLLOW YARN TYPE MEMBRANE SEPARATION EQUIPMENT 失效
公开(公告)号：JPS62237908A
公开(公告)日：1987-10-17
申请号：JP7817186
申请日：1986-04-07
申请人： KURITA WATER IND LTD
发明人： HIROTA MORIYUKI , FURUKAWA MASAHIRO , TSURUMI TAKESHI
IPC分类号： B01D63/04 , B01D65/02
摘要： PURPOSE:To prevent bubbles from escaping of the lower part of a protective cylinder to the outside thereof in the case of washing due to air flushing and to efficiently wash the titled filter module with a small amount of air to be blown thereinto by providing many holes of the protective cylinder for the filter module to the intermediate part and the upper part thereof. CONSTITUTION:In a filter module wherein plenty of yarn is converged in a protective cylinder 11 perforated with many holes and the top ends of hollow yarn 12 are opened and fixed on a top end disk 13 and the bottom end thereof is closed together with the protective cylinder 11, the lower part of the protective cylinder 11 is made free from the hole or provided with a few hole 11' and the intermediate and upper parts are provided with many holes 11'. In the case of washing a hollow yarn type membrane separation equipment wherein a plurality of filter modules are hung on a partition of the inside of a treatment chamber, bubbles fed through an air feed pipe of the lower part of the treatment chamber are supplied to the inside of the protective cylinder 11 through perforated holes of a lower end plate 14 and nearly all parts of bubbles are emitted to the outside of the cylinder through the holes 11' of the upper part of the protective cylinder 11, effectively acting to peel a turbid material trapped on the outer faces of hollow yarn 12.

62. 发明专利

JPS62211593A WASHING WASTE WATER DISPOSAL PLANT FOR HOLLOW YARN MEMBRANE TYPE CONDENSATE FILTER 失效
公开(公告)号：JPS62211593A
公开(公告)日：1987-09-17
申请号：JP5386686
申请日：1986-03-12
申请人： KURITA WATER IND LTD
发明人： FURUKAWA MASAHIRO , TSURUMI TAKESHI
IPC分类号： G21F9/10 , B01J47/12 , C02F1/44 , C02F1/56

63. 发明专利

JPS6111116A Process for removing impurity from liquid 失效
标题翻译：从液体中清除污染物的过程
公开(公告)号：JPS6111116A
公开(公告)日：1986-01-18
申请号：JP13265484
申请日：1984-06-27
申请人： Kurita Water Ind Ltd
发明人： FURUKAWA MASAHIRO , TSURUMI TAKESHI
IPC分类号： B01D37/02 , B01J47/00 , C02F1/42
摘要： PURPOSE: To retard pressure drop in a precoated layer and to prolong the life of the filtration operation by forming coarse parts and dense parts along the direction of the layer thickness of a precoat.
CONSTITUTION: A precoated layer is formed to have coarse zones and dense zones in the direction of the thickness of the precoated layer by forming the precoated layer comprised of powdery ion exchange resin and a filter aid such as acryl fiber and changing the proportion of the two components. Namely, if the proportion of the filter aid is increased, the precoated layer becomes coarse, and if the amt. of filter aid is lessened, the precoated layer becomes dense. It is preferred that the precoated layer is formed coarser as it is apart from the surface of the filter element. Namely, by constructing the precoated layer dense at the filter element side, the mode of filtration is stadard clogging type wherein the increase of pressure drop is retarded. Such precoated layer may be realized by building up layers having different denseness stagewise, or by changing the denseness continuously.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过沿着预涂层的层厚度的方向形成粗糙部分和致密部分，延缓预涂层中的压降并延长过滤操作的寿命。构成：通过形成由粉末状离子交换树脂和助滤剂（例如丙烯酸纤维）组成的预涂层，形成预涂层厚度方向上的粗糙区域和致密区域，并改变两者的比例组件。也就是说，如果助滤剂的比例增加，则预涂层变粗，如果是。的助滤剂减轻，预涂层变得致密。优选的是，预涂层在与过滤元件的表面分开时形成得更粗糙。也就是说，通过在过滤元件侧构造致密的预涂层，过滤的模式是其中压降的增加被延迟的柱塞堵塞型。这样的预涂层可以通过逐渐地建立具有不同致密度的层，或者通过连续地改变密度来实现。

64. 发明专利

JPS58216775A Method for ion exchange of water containing heavy metal and chelating agent 失效
标题翻译：含有重金属和螯合剂的水的离子交换方法
公开(公告)号：JPS58216775A
公开(公告)日：1983-12-16
申请号：JP9190282
申请日：1982-05-28
申请人： Kurita Water Ind Ltd
发明人： NISHI HIDETAKA , TSURUMI TAKESHI
IPC分类号： C02F1/42
摘要： PURPOSE: To increase the reflux exchange capacity of an ion exchange device in the stage of subjecting the water to be treated contg. heavy metals and a chelating agent to ion exchanging by controlling the water to be treated to a relatively high temp.
CONSTITUTION: When water to be treated contg. heavy metals and a chelating agent is passed through an ion exhcnage device, a free hydroxyl group reacts with the metal in the complex to form a water soluble metallic hydroxide which is going to hamper the ion exchange reaction in the reaction wherein the complex of the metal and the chelating agent is adsorbed with an anion exchange resin. However, if the water to be treated is regulated in temp. to 50W70°C and is subjected to the ion exchanging, the deposited metallic hydroxide reacts with the fresh chelating agent and since the formed metallic complex is high in the rate of rechelation, the hindrance in the ion exchange reaction by the metallic hydroxide is reduced and the ion exchange resin is utilized extremely effectively.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：提高离子交换装置在待处理水的阶段的回流交换能力。重金属和螯合剂通过将待处理的水控制到相对高的温度进行离子交换。构成：待处理水时重金属和螯合剂通过离子渗出装置，游离羟基与络合物中的金属反应形成水溶性金属氢氧化物，其将阻碍反应中的离子交换反应，其中金属络合物并且螯合剂被阴离子交换树脂吸附。然而，如果待处理的水在温度调节。至50-70℃，进行离子交换，沉积的金属氢氧化物与新鲜螯合剂反应，由于形成的金属络合物的再循环速率高，金属氢氧化物的离子交换反应的障碍并且离子交换树脂被非常有效地利用。

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