JPS58202092A - Contact material for treatment of water - Google Patents
Contact material for treatment of waterInfo
- Publication number
- JPS58202092A JPS58202092A JP57085450A JP8545082A JPS58202092A JP S58202092 A JPS58202092 A JP S58202092A JP 57085450 A JP57085450 A JP 57085450A JP 8545082 A JP8545082 A JP 8545082A JP S58202092 A JPS58202092 A JP S58202092A
- Authority
- JP
- Japan
- Prior art keywords
- contact material
- crimped
- water
- threads
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000011282 treatment Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000000853 adhesive Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 18
- 229920002994 synthetic fiber Polymers 0.000 abstract description 10
- 239000012209 synthetic fiber Substances 0.000 abstract description 10
- 238000005273 aeration Methods 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 229920001169 thermoplastic Polymers 0.000 abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 3
- 229920002301 cellulose acetate Polymers 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- 235000014676 Phragmites communis Nutrition 0.000 abstract 2
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 19
- 238000004804 winding Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002062 proliferating effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、捲縮加工糸条がほぼ平行に配列されたすだれ
状シートからなる水処理接触材に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a water treatment contact material comprising a comb-like sheet in which crimped threads are arranged substantially in parallel.
最近、活性汚泥法等の生物学的排水処理の中で生物膜を
利用した固定床式接触酸化法が注目されている。この固
定床式接触酸化法とは、ａ生物の付着し昌い接触材を４
４Ｘ櫂中に充填し、該接触材の表面に着生繁殖した生物
膜に排水を空気とともに接触させて酸化し、吸１１１処
理するンステムである。そして、この場合の接触材とし
て従来から用いられているものには、波板やハニカ五チ
ューブ等のプラスチックモジュール、又はすだれ状の紐
体等があるが、このすだれ状の紐体を接触材として用い
る場合には、すだれを形成する紐体を支持棒ＩＣ１本１
本結びつけるか、又は接着するか等して一定する要があ
り９手間の掛る非能率な作業を必要とする。また、従来
の紐体接触材では、排水との接触度を高めて処理効率を
上げるために接触表面積を増大させる必要があり、その
ため紐体を芯材の周囲に〃−グ状に編み込んだり、又は
紐体に起毛処理を施してプツシ状にするなど１通常市販
されている繊維に施される加工法とは異なる特殊加工を
施さねばならず、その製作に多大の労力と時間とを要し
、非常に不便であった。Recently, fixed bed catalytic oxidation methods using biofilms have been attracting attention among biological wastewater treatments such as activated sludge methods. This fixed bed catalytic oxidation method is a method in which the contact material is
This system is filled in a 4X paddle, and oxidizes the biofilm grown epiphytically on the surface of the contact material with air to oxidize it and treat it with suction. Conventionally used contact materials in this case include plastic modules such as corrugated plates and honeycomb five-tubes, and blind-like strings. When used, the strings forming the blinds are attached to one support rod IC.
It is necessary to make constant connections such as binding or gluing, which requires time-consuming and inefficient work. In addition, with conventional string contact materials, it is necessary to increase the contact surface area in order to increase the degree of contact with wastewater and increase treatment efficiency. Or, the string must be subjected to a special process that is different from the process normally applied to commercially available fibers, such as brushing the string to make it into a tufted shape, and it takes a great deal of effort and time to manufacture it. , which was very inconvenient.
本発明は、上記の諸点に鑑み、接触材として。In view of the above points, the present invention is directed to a contact material.
合成繊維の捲縮加工糸を使用するもので、これは合成繊
維が人工的に害鳥に捲縮成型することができる点に着目
したものである。現在、一般的に使用されている繊維の
大部分は多少とも縮れを備えているが、所定の荷重で消
滅しない程度に憤く。This method uses crimped synthetic fiber yarn, which focuses on the fact that synthetic fiber can be crimped into the shape of a harmful bird artificially. Most of the fibers in common use today have some degree of curl, but only to the extent that it does not disappear under a given load.
またある程度の規則性のある形蝮なとるものは特に捲縮
と呼ばれている。この捲縮は、繊維の可塑性を利用して
人工的にも成型し付与することができるもので、各種の
合成繊維や半合成繊維その他の可塑性繊維に行われてい
る。特に０合成繊維や半合成繊維は、熱処理又は熱固定
によって大きな捲縮性や嵩高性を付与することができる
もので。Also, those that have a certain degree of regularity are especially called crimps. This crimp can be artificially shaped and applied by utilizing the plasticity of fibers, and is performed on various synthetic fibers, semi-synthetic fibers, and other plastic fibers. In particular, synthetic fibers and semi-synthetic fibers can be given great crimpability and bulk by heat treatment or heat setting.
例えば９通常の仮撚機で製造されるストレッチ糸は大き
な捲縮性と嵩高性を付与され、その捲縮の伸びによる大
きな弾性的伸度を有し、乾燥・湿熱等によってその捲縮
形態を変化する性質を持っている。For example, stretch yarn manufactured using a normal false twisting machine is given great crimpability and bulkiness, and has a large elastic elongation due to the elongation of the crimp, and its crimp form can be changed by drying, moist heat, etc. It has a changing nature.
本発明は９以上のように容易に人工的に捲縮性と嵩高性
とを付与することがｇＴ能な合成繊維や半合成繊維の捲
縮加工糸を用いた。排水処理効率の極めて良い水処理接
触材の提供を目的とするものである。The present invention uses crimped yarns of synthetic fibers or semi-synthetic fibers that can easily be artificially imparted with crimpability and bulkiness, as shown in 9 and above. The purpose of this invention is to provide a water treatment contact material with extremely high wastewater treatment efficiency.
すなわち１本発明の水処理接触、物は、複数本の捲縮加
工糸条がほぼ平行に配列されたすだれ状シートからなり
、少なくとも上縁及び下縁を含む長手方向の複数個所に
前記複数本の捲縮加工糸条間を連結する帯状部を有する
ことを特徴とする水処理接触材である。Namely, the water treatment contact product of the present invention is composed of a slat-like sheet in which a plurality of crimped threads are arranged approximately parallel to each other, and the plurality of crimped threads are arranged at a plurality of locations in the longitudinal direction including at least the upper edge and the lower edge. This is a water treatment contact material characterized by having a band-shaped portion that connects the crimped yarns of the crimped yarn.
以下に１本発明の構成を実施例に基づいて詳細に説明す
る。第１図は１本発明に係る水処理接触材のＳＪ！施例
の斜視図である。該水処理接触材（１）は捲縮加工糸条
（２）からなり、該捲縮加工糸条（２）はｌリアミド、
ポリエステ〃、ポリオレフィン、ｌり環化ビニル、ポリ
アクリロニトリル等の熱可塑性合成樹脂及びセルローズ
アセテート等の半合成繊維を仮撚加工法、押込加工法、
擦過加工法、又は賦型加工法等の一般捲縮加工方法によ
り加工したもので、大きな捲縮性と嵩高性とを付与され
たものである。これ等の捲縮加工糸条（２）を１図のご
とく、複数本はぼ平行に配列してすだれ状のｙ −）（
３）とし、該Ｓ／ −） （ａ）の長手方向の複数個所
、すなわち上縁と下縁、もしくは上縁、中間、下縁とに
帯状（４） Ｃ、接着剤で接着するか又は織編成して。The configuration of one embodiment of the present invention will be explained in detail below based on embodiments. FIG. 1 shows SJ! of the water treatment contact material according to the present invention! It is a perspective view of an example. The water treatment contact material (1) is composed of a crimped yarn (2), and the crimped yarn (2) is composed of l-lyamide,
Thermoplastic synthetic resins such as polyester, polyolefin, polycyclized vinyl, and polyacrylonitrile, and semi-synthetic fibers such as cellulose acetate are processed by false twisting, pressing,
It is processed by a general crimping method such as a scratching method or a shaping method, and is given great crimpability and bulk. As shown in Figure 1, a plurality of these crimped threads (2) are arranged almost in parallel to form a blind-like y-)(
3), and said S/-) (a) in multiple places in the longitudinal direction, i.e., the upper edge and the lower edge, or the upper edge, the middle, and the lower edge, in the form of a band (4) C. Bonded with adhesive or woven. Organize.
複数本の倦縮加工糸条（２）間を連結する上縁帯状部（
４＆）、中間帯状部（４ｂ） 、下縁帯状部（４Ｃ）と
し、さらに下縁帯状部（４ａ）ＩＣ，この水処理接触材
（１）を曝気槽（図示せず。）内に懸垂するための吊具
（５）を取り付けたものである。なお、この水処理接触
材（１）の曝気槽内への取り付は方法としては、前記の
吊具（５）による場合の外、水処理接触材（１）の上縁
帯状部（４ａ）と下縁帯状部（４ｃ）の両帯状部を枠や
支持棒等の支持具で支持するか、又は釘や接着剤で固定
する等、その他任意の取付方法がある。An upper edge band-shaped portion (
4&), an intermediate strip (4b), a lower edge strip (4C), and a lower edge strip (4a) IC, and the water treatment contact material (1) is suspended in an aeration tank (not shown). A hanging device (5) is attached for this purpose. The water treatment contact material (1) can be installed inside the aeration tank by using the above-mentioned hanging tool (5), or by using the upper edge strip (4a) of the water treatment contact material (1). There are other arbitrary mounting methods such as supporting both the lower edge strip (4c) with a support such as a frame or a support rod, or fixing with nails or adhesive.
次に、第２、図は、各帯状部を接着剤で接着する場合の
水処理接触材の製造方法の一例を示す簡略側面図である
。Next, the second figure is a simplified side view showing an example of a method for manufacturing a water treatment contact material in which each strip is bonded with an adhesive.
姥縮加工糸巻糸体（Ｆ’）から引き出された複数本の捲
縮加工糸（２）は、ガイド（Ｇ）により所定間隔をへた
ててほぼ平行に配列させられてすだれ状のシート（３）
となり９巻取りローフ＠）により引張られて矢印（Ｎ方
向に進行する。その進路の途中に接着剤付与装置ＣＢ）
と加熱装置（３）とが配設され、接着剤付与部分田）か
らシート（３）へ接着剤を、その進行方向に直角に、そ
の幅の全幅にわたり、帯状（４）に付与し。A plurality of crimped yarns (2) pulled out from the crimped yarn wound body (F') are arranged approximately parallel to each other at predetermined intervals by a guide (G) to form a blind-shaped sheet ( 3)
It is pulled by the next 9 winding loaf @) and moves in the direction of the arrow (N. There is an adhesive applying device CB along the way)
and a heating device (3) are arranged to apply adhesive from the adhesive application section (solder) to the sheet (3) in a strip (4) over its entire width at right angles to its direction of travel.
次に加熱装置（ｍで接着剤付与部分を加熱して捲縮加工
糸条間を連続固着する。すなわち６巻取りローフ伝）で
引張られ、矢印（（転）方向に進行中のシート（３）を
先ず接着剤付与装置ｆＢ）の個所で一時停止させ。Next, the sheet (3) which is being stretched in the direction of the arrow ((rotation) ) is first temporarily stopped at the adhesive applying device fB).
該Ｖ −） （りに接着剤付与装置（Ｂ）から接着剤を
帯状（４）に付与した後、再び進行させ、接着剤を帯状
（４）に付与したシート（３）の該部分が加熱装置（Ｈ
）の個所まで進行したとき再び一時停止させ、付与した
接着剤を加熱してシー）（３）内の捲縮加工糸条（２）
間を接着して連結固着させる。この時、接着剤付与装置
（Ｂ）からも同時に、該接着剤付与装置（Ｂｌの個所に
一時停止しているシート（３）の全幅に接着剤を前記と
同様に帯状（４）に付与し、再びシート（３）を進行さ
せるもので１以上の作業を繰り返しながら巻取りローラ
億）で巻取ることにより、水処理接触材（１）を製造す
る。したがって、この方法では、接着剤付与装置（Ｂｌ
と加熱装置（２）とを配設する間隔は必要とする帯状線
同志の間隔により決定すればよい。V-) (After the adhesive is applied to the strip (4) from the adhesive application device (B), the adhesive is applied again to the strip (4), and the part of the sheet (3) to which the adhesive is applied to the strip (4) is heated. Equipment (H
) When the process reaches point ), the crimped yarn (2) in (3) is stopped again and the applied adhesive is heated.
Glue the gaps to connect and secure. At this time, adhesive is simultaneously applied from the adhesive applying device (B) to the entire width of the sheet (3) temporarily stopped at the location Bl in the same manner as described above in the form of a band (4). Then, the water treatment contact material (1) is manufactured by winding the sheet (3) again with a winding roller while repeating one or more operations. Therefore, in this method, the adhesive application device (Bl
The spacing between the heating device (2) and the heating device (2) may be determined based on the required spacing between the strip wires.
用いる接着剤としてはポリ塩化ビニル系、ポリアクリル
系等の熱可塑性合成樹脂あるいはエポキシ系、ウレタン
系等の熱硬化性合成樹脂等を用いることができる。The adhesive to be used may be a thermoplastic synthetic resin such as polyvinyl chloride or polyacrylic, or a thermosetting synthetic resin such as epoxy or urethane.
なお、この方法においては、少くとも１０本以上通常１
００本以上の捲縮加工糸条（２）をほぼ平行にすだれ状
に配列させるので、隣接する捲縮加工糸（２）が交絡し
、纏れによる糸切れやガイド孔への糸留まりが発生する
こともあるが、このような場合には巻取りローフ（Ｒ１
の巻取り張力を高めて捲縮加工糸（２）を延伸して、倦
縮を一時的に除夫し、直線状にして巻取るようにする。In addition, in this method, at least 10 or more wires are usually used.
Since 00 or more crimped yarns (2) are arranged almost parallel in a sash-like pattern, adjacent crimped yarns (2) become intertwined, causing thread breakage and thread retention in guide holes. However, in such cases, the winding loaf (R1
The crimped yarn (2) is stretched by increasing the winding tension, temporarily removing the crimping, making it straight and winding it.
また、帯状部（４）は、上記のごとく接着剤のみで形成
するほか、適宜の長さのデフスチックフイルムあるいは
織編布、不織布等の布帛をすだれ状シー）（３）の片面
又は両面の全幅に接着剤を用いて接着するか、あるいは
縫着することによって形成することができる。さらに帯
状部（４）はすだれ状に配列した捲縮加工糸条（２）を
経糸とし、他の糸条な緯糸として打込んで適宜の長さに
織成するか、あるいは経ｉｉｉ織で・産室の長さに編成
することによって形成してもよい。In addition to forming the band-shaped part (4) only with adhesive as described above, the band-shaped part (4) may be formed by using an appropriate length of defstick film or fabric such as woven or knitted fabric or non-woven fabric on one or both sides of the blind-shaped sheet (3). It can be formed by gluing the entire width with adhesive or by sewing. Furthermore, the belt-like part (4) can be woven into an appropriate length by using the crimped threads (2) arranged in a blind pattern as warp threads and other threads as weft threads, or by warp III weaving. It may also be formed by knitting the length of the delivery room.
以上のようにして製造した本発明の水処理接触材は、使
用に際して曝気槽の大きさに応じて、適宜の帯状部を切
断し、これに吊具等を取り付けて用いる。When using the water treatment contact material of the present invention produced as described above, an appropriate strip is cut according to the size of the aeration tank, and a hanging tool or the like is attached to the strip.
本発明に係る水処理接触材は以上のような構成を有し１
表面積の大きなＷｋ細な倦縮加工フィラメントの集合体
であり９通常糸に比べて見掛けの容積が大きく、空隙率
の高い、ｉかに大きな嵩高性を有するので、増殖微生物
−こよる閉塞がなく、液の流動性が極めて良好であり、
また２次元的、３次元的な捲縮ひすみによる螺旋構造を
有し、かつ従来の紐体のような芯材や毛羽からなる内削
外柔的なものでないため、微生物が着生し易＜、シたが
ってその全面に一様に微生物の着生する接触材であり、
さらに接触材を形成する捲縮加工糸条の捲縮度と伸縮度
とを調整することにより、曝気槽内（おける充填度を制
御することが可能で、それにより処理目的に適合した任
意のＭ密度の接触材とすることができ、また適宜の間隔
で帯状部を有しているので各糸条がもつれることがなく
取扱い簡便で、かつ該接触材の製造方法も極めて簡単で
あるという、従来にない幾多の利点を有する優れた水処
理接触材である。The water treatment contact material according to the present invention has the above-described configuration.
It is an aggregate of thin compressed filaments with a large surface area, and has a larger apparent volume than normal yarns, a high porosity, and a much larger bulkiness, so there is no clogging caused by proliferating microorganisms. , the fluidity of the liquid is extremely good,
In addition, it has a spiral structure with two-dimensional and three-dimensional crimp creases, and it is not a core material or fluffy inner and outer structure like conventional strings, so it is easy for microorganisms to grow on it. ＜, Therefore, it is a contact material on which microorganisms adhere uniformly over its entire surface,
Furthermore, by adjusting the degree of crimp and degree of expansion and contraction of the crimped yarn forming the contact material, it is possible to control the degree of filling in the aeration tank (in the aeration tank). The contact material can be made into a contact material with a high density, and since it has band-like parts at appropriate intervals, each yarn does not get tangled, making it easy to handle, and the method for manufacturing the contact material is also extremely simple. It is an excellent water treatment contact material with many advantages not found in other products.
第１図は本発明に係る水処理接触材の一例を示す斜視図
、第２図はその製造工程の簡略ｍ面図である。
（１）・・・水処理接触材、（２）・・・捲縮加工糸、
（３）・・・シート（４）・・・帯状部、１′・・捲縮
加工糸巻糸体、Ｇ・・・ガイドＢ−・接着剤付与装置、
Ｈ・・・加熱装置、Ｒ・・・巻取りローラ。
特許出願人 ユニチカ株式会社
埠１１！１７゜
午
算 ２ 図FIG. 1 is a perspective view showing an example of the water treatment contact material according to the present invention, and FIG. 2 is a simplified m-plane view of the manufacturing process thereof. (1)...water treatment contact material, (2)...crimped yarn,
(3) Sheet (4) Band-shaped portion, 1'... Crimped thread body, G... Guide B-- Adhesive applying device,
H: heating device, R: winding roller. Patent applicant Unitika Co., Ltd. Bu 11! 17゜ Hourly Calculation 2 Figure
Claims (1)
だれ状シートからなり、少なくとも上縁及び下縁を含む
長手方向の複数個所に前記複数本の捲縮加工糸条間を連
結する帯状部を有することを特徴とする水処理接触材。(1) Consisting of a blind-like sheet in which a plurality of crimped yarns are arranged approximately parallel to each other, the plurality of crimped yarns are connected at multiple locations in the longitudinal direction, including at least the upper and lower edges. A water treatment contact material characterized by having a band-like part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57085450A JPS58202092A (en) | 1982-05-19 | 1982-05-19 | Contact material for treatment of water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57085450A JPS58202092A (en) | 1982-05-19 | 1982-05-19 | Contact material for treatment of water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58202092A true JPS58202092A (en) | 1983-11-25 |
| JPH0148080B2 JPH0148080B2 (en) | 1989-10-17 |
Family
ID=13859214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57085450A Granted JPS58202092A (en) | 1982-05-19 | 1982-05-19 | Contact material for treatment of water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58202092A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100348740B1 (en) * | 2000-04-24 | 2002-08-14 | (주)이앤텍 | A media for treating waste water entrapped with microorganism using cellulose acetate |
| KR100875084B1 (en) * | 2008-06-04 | 2008-12-18 | 한국섬유개발연구원 | Combustible Filter Media for Water Treatment Devices |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0388380U (en) * | 1989-12-27 | 1991-09-10 | ||
| JPH069181U (en) * | 1992-07-04 | 1994-02-04 | 村田機械株式会社 | Opening / closing cover mounting structure |
-
1982
- 1982-05-19 JP JP57085450A patent/JPS58202092A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100348740B1 (en) * | 2000-04-24 | 2002-08-14 | (주)이앤텍 | A media for treating waste water entrapped with microorganism using cellulose acetate |
| KR100875084B1 (en) * | 2008-06-04 | 2008-12-18 | 한국섬유개발연구원 | Combustible Filter Media for Water Treatment Devices |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0148080B2 (en) | 1989-10-17 |
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