JPH09220547A - Method for regenerating washing solution and apparatus therefor - Google Patents
Method for regenerating washing solution and apparatus thereforInfo
- Publication number
- JPH09220547A JPH09220547A JP8029529A JP2952996A JPH09220547A JP H09220547 A JPH09220547 A JP H09220547A JP 8029529 A JP8029529 A JP 8029529A JP 2952996 A JP2952996 A JP 2952996A JP H09220547 A JPH09220547 A JP H09220547A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning liquid
- cleaning
- sludge
- storage tank
- tank
- 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
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 17
- 238000005406 washing Methods 0.000 title abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 262
- 238000004140 cleaning Methods 0.000 claims abstract description 258
- 238000003860 storage Methods 0.000 claims abstract description 63
- 239000010802 sludge Substances 0.000 claims abstract description 52
- 238000011282 treatment Methods 0.000 claims abstract description 12
- 238000012546 transfer Methods 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 claims description 32
- 239000006185 dispersion Substances 0.000 claims description 28
- 238000000926 separation method Methods 0.000 claims description 23
- 239000012459 cleaning agent Substances 0.000 claims description 13
- 230000008929 regeneration Effects 0.000 claims description 13
- 238000011069 regeneration method Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 7
- 238000011109 contamination Methods 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001914 filtration Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 235000013305 food Nutrition 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、食品工業、医薬工
業、紙パルプ工業などの加工処理を伴う各種の生産設備
を清掃するに際して発生する、汚れた洗浄液の処理方法
に関し、特に洗浄液中の懸濁固形物を分離除去して、効
果的に洗浄液を再生回収する方法、及びかかる方法を実
施するに適した装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating dirty cleaning liquid which occurs when cleaning various production facilities involving processing such as food industry, pharmaceutical industry, paper pulp industry and the like. The present invention relates to a method for separating and removing suspended solids to effectively regenerate and recover a cleaning liquid, and an apparatus suitable for carrying out such a method.
【０００２】[0002]
【従来の技術】食品、医薬、紙パルプなどを生産する設
備は、原料を流体状で処理して製品とすることが多いた
めに、通常は化学工学的な工程を実施するに適した装
置、例えば原料貯蔵装置、搬送装置、加熱装置、冷却装
置、加圧装置、混合や分離等を含む加工処理装置、充填
装置などのほか、これらの装置を接続するための配管装
置などで構成されているものである。そしてこのような
生産設備を稼働するときには、仕込まれた原料は設備内
を移動しながら各種の処理を受けるために、成分の変性
や析出、気泡等の混入、流動状態の変動などによって各
装置の内部に汚れが付着し易い。2. Description of the Related Art Equipment for producing foods, medicines, paper pulp, etc. is usually an apparatus suitable for carrying out chemical engineering processes, because raw materials are often processed into a product by processing in a fluid state. For example, it is composed of a raw material storage device, a transfer device, a heating device, a cooling device, a pressurizing device, a processing device including mixing and separating, a filling device, and a piping device for connecting these devices. It is a thing. When operating such a production facility, the charged raw material undergoes various treatments while moving in the facility, so that the denaturation and precipitation of components, the inclusion of bubbles, etc. It is easy for dirt to adhere to the inside.
【０００３】これらの汚れは装置の能力低下や、品質の
ばらつき、或いは製品の汚染などに繋がるので、汚れの
付着に応じて、又は定期的に装置内部を洗浄するなどの
方法で清掃するのが一般的である。しかし対象の装置が
小規模であれば、構成する機器を分解して洗浄すること
が容易であるが、大規模な装置となると、機器を分解洗
浄することは容易でない。従って洗浄のための時間や労
力を省くために、界面活性剤や溶剤などを含む洗浄液を
装置内の機器等に充満させて循環し、機器の内部に付着
した汚れなどを剥離除去する方法が行われている。Since these stains lead to deterioration of the performance of the apparatus, variations in quality, contamination of products, etc., it is recommended to clean the inside of the apparatus according to the adhesion of dirt or periodically. It is common. However, if the target device is small, it is easy to disassemble and clean the constituent devices, but if it is a large-scale device, it is not easy to disassemble and clean the devices. Therefore, in order to save time and labor for cleaning, there is a method to remove and remove the dirt etc. adhering to the inside of the equipment by filling the equipment inside the equipment with a cleaning liquid containing a surfactant or solvent and circulating it. It is being appreciated.
【０００４】上記のように装置を解体することなく、装
置を構成する機器の内部を洗浄液の循環によって清浄化
する定置洗浄方法（以下、Cleaning in Place の略語で
あるＣＩＰと呼ぶ。）によれば、大量の洗浄液を循環使
用して洗浄することによって溶解し剥離した汚れは、洗
浄液と共に装置の外に排出される。そして、汚れの程度
の少ない洗浄液はその一部が廃棄されるが、残りは装置
の濯ぎ水などとともに清水や洗浄剤を追加して組成を再
調整し、汚れが蓄積して使用に耐えなくなるまで繰り返
して使用されるのが普通であった。According to the stationary cleaning method (hereinafter, abbreviated as CIP, which is an abbreviation of Cleaning in Place), the inside of the equipment constituting the apparatus is cleaned by circulating the cleaning liquid without disassembling the apparatus as described above. The dirt that has been dissolved and peeled off by circulating a large amount of cleaning liquid is discharged to the outside of the apparatus together with the cleaning liquid. Then, part of the cleaning liquid with a low degree of dirt is discarded, but the rest is added to the equipment's rinsing water, etc., and fresh water or a cleaning agent is added to readjust the composition until the dirt accumulates and becomes unusable. It was usually used repeatedly.
【０００５】ところで、食品工業などにおける有機物を
取り扱う設備の清掃に用いられる洗浄液は、界面活性剤
や溶剤、ＰＨ調整剤などを配合した、市販のアルカリ洗
浄剤の水溶液が利用されることが多い。かかるアルカリ
系洗浄液を用いて処理装置などの内部の汚れを洗浄する
と、洗浄剤として有効なアルカリ成分の量、即ちＰ−ア
ルカリ度が低下すると共に、汚れに由来するアルカリ成
分が加わって、全アルカリ成分の量、即ちＭ−アルカリ
度が増加する。そこで、一般的には残存洗浄能力の指標
として、Ｍ−アルカリ度とＰ−アルカリ度の比（Ｍ／Ｐ
比）を用いることが推奨されている。By the way, as a cleaning liquid used for cleaning equipment handling organic substances in the food industry and the like, an aqueous solution of a commercially available alkaline cleaning agent containing a surfactant, a solvent, a pH adjusting agent and the like is often used. When stains inside a processing apparatus or the like are washed using such an alkaline cleaning liquid, the amount of an alkaline component effective as a cleaning agent, that is, the P-alkalinity is lowered, and an alkaline component derived from the stain is added, so that the total alkalinity is increased. The amount of components, i.e. M-alkalinity, increases. Therefore, in general, the ratio of M-alkalinity to P-alkalinity (M / P
Ratio) is recommended.
【０００６】しかし、汚れた洗浄液には溶解成分として
ＣＯＤやＢＯＤが含まれ、また懸濁状態の固形物も存在
する。そして、組成の再調整をして繰り返し使用された
洗浄液は、Ｍ／Ｐ比が１．１以上、ＣＯＤが５０００mg
/l以上、又はＢＯＤが３０００mg/l以上という使用寿命
の経験的な指標に達しておらず、残存洗浄能力に余裕が
あっても、洗浄液中の固形物の量が増加すると、機器等
の洗浄の際に固形物が装置内に再付着して洗浄を妨げる
結果、微生物発生を促進するなどの障害を起こすほか、
製品の品質低下を引き起こすなどの問題を起こし易い。
こうした固形物は、汚れの成分が温度変化により結晶化
し析出したり、凝集したりして固形化したものや、パッ
キン屑、或いはその他の混入物などで構成され、微粒子
となったものであり、ナトリウム、カリウム、燐、シリ
カ等の無機物を多く含み、スラッジと呼ばれているが、
かかるスラッジが蓄積した洗浄液はなお洗浄能力が残っ
ていても、反復使用が困難となって廃棄されるのが普通
であった。However, the dirty cleaning liquid contains COD and BOD as dissolved components, and there are also solid substances in a suspended state. Then, the cleaning liquid used by re-adjusting the composition and repeatedly used had an M / P ratio of 1.1 or more and a COD of 5000 mg.
/ l or more, or BOD of 3000 mg / l or more has not reached the empirical index of service life, and even if there is a margin for the remaining cleaning capacity, if the amount of solids in the cleaning liquid increases, cleaning the equipment etc. At the time of solidification, solid matter reattaches to the inside of the device and interferes with cleaning, resulting in problems such as promoting the generation of microorganisms.
It is easy to cause problems such as deterioration of product quality.
Such a solid material is composed of fine particles that are solidified by crystallizing and precipitating a stain component by temperature change, or aggregating, packing scraps, or other contaminants, and are fine particles. It contains a lot of inorganic substances such as sodium, potassium, phosphorus and silica, and is called sludge.
Even if the cleaning liquid in which such sludge has accumulated still has the cleaning ability, it is difficult to repeatedly use the cleaning liquid and is usually discarded.
【０００７】そのため洗浄液の調製を行う他に、使用に
よって劣化した洗浄液を回収して一時貯蔵し、またスラ
ッジの沈澱分離や濾過、更に洗浄剤の濃度を調整するな
どして再生し、反復使用するための設備（ＣＩＰ設備と
呼ばれる。）が、主設備に付帯して設けられることが多
い。こうしたＣＩＰ設備は、例えば図４に示すように構
成されている。ここで、洗浄液貯留タンク１内で調製さ
れた洗浄液は、送液ポンプ２により各種の製造装置内の
処理用機器３に送られ、洗浄により汚れを含んだ液は洗
浄液貯留タンク１に戻るようになっている。こうした洗
浄操作を反復して行うと、洗浄液貯留タンク１内の洗浄
液には次第に汚れが蓄積するが、スラッジＳなどがタン
クの底部などに沈積して分離するので、上澄みの洗浄液
Ｌは見掛け上はあまり汚れておらず、洗浄力に余裕があ
れば、更に繰り返して処理用機器３の洗浄に使用するこ
とが可能となる。Therefore, in addition to the preparation of the cleaning liquid, the cleaning liquid deteriorated by use is collected and temporarily stored, and it is regenerated by separating the sludge from the precipitate and filtering it, and further adjusting the concentration of the cleaning agent, for repeated use. Equipment for this purpose (called CIP equipment) is often provided in addition to the main equipment. Such CIP equipment is configured, for example, as shown in FIG. Here, the cleaning liquid prepared in the cleaning liquid storage tank 1 is sent to the processing equipment 3 in various manufacturing apparatuses by the liquid sending pump 2 so that the liquid containing dirt due to the cleaning returns to the cleaning liquid storage tank 1. Has become. When such a cleaning operation is repeated, dirt is gradually accumulated in the cleaning liquid in the cleaning liquid storage tank 1, but sludge S and the like are deposited on the bottom of the tank and separated, so that the cleaning liquid L in the supernatant appears to be apparent. If it is not very dirty and has sufficient cleaning power, it can be used repeatedly for cleaning the processing equipment 3.
【０００８】ところが、洗浄液の再使用を継続するうち
に、沈積したスラッジＳなどが洗浄液中に混入するよう
になる。そこで、洗浄液貯留タンク１内の洗浄液を送液
ポンプ４で濾過装置５に送り、スラッジＳを分離して廃
棄するとともに洗浄液を洗浄液貯留タンク１に回収す
る。そして、濾過装置５に送られる洗浄液中にスラッジ
Ｓが含まれなくなると、濾過操作を停止して洗浄液中の
洗浄剤成分の濃度を調整し、新しい洗浄液と同様な再生
洗浄液Ｌとして、再び処理用機器３の洗浄に使用してい
た。そして、洗浄液を再生しても使用できないと判断さ
れた場合は、汚れた洗浄液をサブタンク６に移して一時
貯留し、排水処理装置へ少量ずつ排出する等により処分
するようにしていた。However, as the cleaning liquid is continuously reused, the sludge S and the like that have accumulated become mixed into the cleaning liquid. Therefore, the cleaning liquid in the cleaning liquid storage tank 1 is sent to the filtering device 5 by the liquid supply pump 4, the sludge S is separated and discarded, and the cleaning liquid is collected in the cleaning liquid storage tank 1. Then, when the sludge S is no longer contained in the cleaning liquid sent to the filtering device 5, the filtering operation is stopped to adjust the concentration of the cleaning agent component in the cleaning liquid, and a regenerated cleaning liquid L similar to a new cleaning liquid is used again for treatment. It was used for cleaning the device 3. When it is judged that the cleaning liquid cannot be used even if it is regenerated, the dirty cleaning liquid is transferred to the sub-tank 6 to be temporarily stored therein, and then the waste cleaning liquid is discharged little by little to the waste water treatment device for disposal.
【０００９】[0009]
【発明が解決しようとする課題】上記のような、従来の
洗浄液の再生処理方法によれば、洗浄液貯留タンク１内
のスラッジＳの堆積量が徐々に増加し、再生洗浄液中に
スラッジＳが混入してくるまでの使用期間が次第に短く
なるので、頻繁に再生操作を繰り返すことが必要であっ
た。そして再生操作の回数を減らすために、洗浄液貯留
タンク１内に沈積物を残さないようにしようとすると、
洗浄液濾過操作を長時間かけて実施するか、または洗浄
液を一時サブタンク６に移して洗浄液貯留タンク１を別
途に清掃するなど、工数が多くて煩雑な作業が必要であ
るという問題があった。According to the conventional method for regenerating the cleaning liquid as described above, the amount of the sludge S accumulated in the cleaning liquid storage tank 1 is gradually increased, and the sludge S is mixed in the regenerated cleaning liquid. It was necessary to repeat the regenerating operation frequently because the period of use until the start of use was gradually shortened. Then, in order to reduce the number of regeneration operations, if an attempt is made not to leave a deposit in the cleaning liquid storage tank 1,
There has been a problem that the cleaning liquid is filtered over a long period of time, or the cleaning liquid is temporarily transferred to the sub-tank 6 to separately clean the cleaning liquid storage tank 1, which requires a lot of man-hours and complicated work.
【００１０】そこで本発明は、操作が容易であって、洗
浄対象の処理用機器を再汚染する恐れがなくなるまで洗
浄液を再生できると同時に、汚れた洗浄液貯留タンク内
部をも容易に清掃でき、且つ洗浄液の洗浄能力を使い切
ることができる、化学的処理設備洗浄液の再生処理方法
を提供することを目的とし、更にはかかる洗浄液の再生
処理方法を実施するに適した洗浄液の再生処理装置を提
供することをも目的とする。Therefore, the present invention is easy to operate and can regenerate the cleaning liquid until there is no risk of recontamination of the processing equipment to be cleaned, and at the same time, it is possible to easily clean the inside of the dirty cleaning liquid storage tank. It is an object of the present invention to provide a method for regenerating a cleaning solution for a chemical treatment facility that can use up the cleaning ability of the cleaning solution, and further to provide an apparatus for regenerating a cleaning solution suitable for carrying out such a method for regenerating a cleaning solution. Also for the purpose.
【００１１】[0011]
【課題を解決するための手段】上記の目的を達成できる
本発明の洗浄液の再生処理方法は、洗浄液貯留タンクに
貯留されスラッジを含む洗浄液を均一に分散させる工程
と、該スラッジ分散洗浄液からスラッジを分離除去して
スラッジを含まない洗浄液を回収する工程とにより、清
浄な洗浄液を洗浄液貯留タンク内に回収し、その後洗浄
液中の洗浄剤含量を調整することを特徴とする。A method for regenerating a cleaning liquid according to the present invention, which can achieve the above object, comprises a step of uniformly dispersing a cleaning liquid containing sludge stored in a cleaning liquid storage tank, and sludge from the sludge-dispersed cleaning liquid. A step of separating and removing the sludge-free cleaning liquid to collect a clean cleaning liquid in the cleaning liquid storage tank, and thereafter adjusting the content of the cleaning agent in the cleaning liquid.
【００１２】そして、かかる再生処理方法を実施するに
適した洗浄液の再生処理装置は、洗浄液貯留タンクと、
洗浄液分散タンクと、固液連続分離装置と、これらの洗
浄液貯留タンク、洗浄液分散タンク、固液連続分離装
置、及び前記の洗浄液貯留タンクの間を順に接続して洗
浄液を移送する配管手段とを備えてなることを特徴とす
る。A cleaning liquid regenerating apparatus suitable for carrying out such a regenerating method is a cleaning liquid storage tank,
A cleaning liquid dispersion tank, a solid-liquid continuous separation device, and a cleaning liquid storage tank, a cleaning liquid dispersion tank, a solid-liquid continuous separation device, and piping means for transferring the cleaning liquid by sequentially connecting the cleaning liquid storage tank. It is characterized by
【００１３】[0013]
【発明の実施の形態】本発明において用いられる洗浄液
は、界面活性剤や溶剤、ｐＨ調整剤などを配合した水溶
液が好ましく、市販のアルカリ洗浄剤を水で希釈した溶
液を利用することができる。そして、かかるアルカリ系
洗浄液を用いて食品処理設備などの内部の汚れを洗浄す
るのに、好適に使用される本発明の洗浄液の再生処理装
置は、図１に示すように構成されている。BEST MODE FOR CARRYING OUT THE INVENTION The cleaning liquid used in the present invention is preferably an aqueous solution containing a surfactant, a solvent, a pH adjusting agent and the like, and a commercially available alkaline cleaning agent diluted with water can be used. A cleaning liquid reclaiming apparatus of the present invention, which is preferably used for cleaning dirt inside food processing facilities and the like using such an alkaline cleaning liquid, is configured as shown in FIG.
【００１４】このような本発明の装置を使用して、化学
的処理設備、例えば食品等の処理用機器などの洗浄を実
施するに当たっては、洗浄液貯留タンク１で調製された
洗浄液を、公知の方法に従って、送液ポンプ２により処
理用機器３に送り、その内部を洗浄したのち洗浄液貯留
タンク１に戻し、これを繰り返して処理用機器３と洗浄
液貯留タンク１との間を循環させる。そして、処理用機
器３の洗浄が終了したのち洗浄液Ｌを洗浄液貯留タンク
１に回収するが、貯留されている間に汚れの成分が凝集
変質して洗浄液から析出し、スラッジＳとなって洗浄液
貯留タンク１の底部に沈積する。When cleaning the chemical treatment equipment, for example, the equipment for treating food etc., using the apparatus of the present invention, the cleaning liquid prepared in the cleaning liquid storage tank 1 is treated by a known method. In accordance with the above, the liquid is sent to the processing device 3 by the liquid feed pump 2, the inside thereof is cleaned, and then returned to the cleaning liquid storage tank 1, and this is repeated to circulate between the processing device 3 and the cleaning liquid storage tank 1. Then, after the cleaning of the processing equipment 3 is completed, the cleaning liquid L is collected in the cleaning liquid storage tank 1, and while the cleaning liquid L is being stored, the components of the dirt are agglomerated and changed to precipitate out of the cleaning liquid, and become sludge S to store the cleaning liquid. Deposit on the bottom of tank 1.
【００１５】ところで、この沈積したスラッジＳが少量
である間は、次に洗浄液貯留タンク１から送り出された
上澄み洗浄液ＬへのスラッジＳの混入は少なく、処理用
機器３を洗浄するのに殆ど支障は生じない。しかし、沈
積したスラッジＳが多量となると、洗浄液貯留タンク１
から送り出された洗浄液Ｌに、多量のスラッジＳが纏ま
って混入するようになる。By the way, while the amount of the sludge S deposited is small, the amount of the sludge S mixed in the supernatant cleaning liquid L sent out from the cleaning liquid storage tank 1 is small, and the cleaning of the processing equipment 3 is hardly disturbed. Does not occur. However, if a large amount of sludge S is deposited, the cleaning liquid storage tank 1
A large amount of sludge S comes to be mixed together in the cleaning liquid L sent out from.
【００１６】そこで、このように劣化した洗浄液は、送
液ポンプ４によって洗浄液貯留タンク１内の洗浄液Ｌを
洗浄液分散タンク７に送り込むが、この際の洗浄液Ｌへ
のスラッジＳの同伴量は最初には少なく、最後には多量
になることが多い。そのため、本発明において用いられ
る洗浄液分散タンク７は、洗浄液貯留タンク１の容量と
少なくとも同等の容量を有していて、洗浄液貯留タンク
１の内容物の全量を受け入れ得ることが、洗浄液貯留タ
ンク１の完全清掃のために望ましい。しかし、洗浄液が
利用される際に減量することが予想されている場合に
は、洗浄液分散タンク７の容量を洗浄液貯留タンク１よ
り小さく設定することもできる。そしてまた、洗浄液を
すべて洗浄液分散タンク７へ送出したのちに、更に洗浄
液貯留タンク１内を水洗して清浄化する場合には、この
タンク洗浄液を配管の洗浄をも兼ねて洗浄液分散タンク
７へ送り込むことが好ましく、洗浄液分散タンク７の容
量を洗浄液貯留タンク１より大きめに設定することが望
ましい。Then, the cleaning liquid deteriorated in this way is fed into the cleaning liquid dispersion tank 7 by the liquid feed pump 4 into the cleaning liquid dispersion tank 1, and the amount of the sludge S entrained in the cleaning liquid L at this time is first. There are few, and in the end it often becomes large. Therefore, the cleaning liquid dispersion tank 7 used in the present invention has a capacity that is at least equivalent to the capacity of the cleaning liquid storage tank 1, and can accept the entire amount of the content of the cleaning liquid storage tank 1, Recommended for complete cleaning. However, the volume of the cleaning liquid dispersion tank 7 can be set smaller than that of the cleaning liquid storage tank 1 when it is expected that the amount of the cleaning liquid will be reduced when used. Further, after all the cleaning liquid is sent to the cleaning liquid dispersion tank 7, when the inside of the cleaning liquid storage tank 1 is further washed with water to be cleaned, this tank cleaning liquid is also sent to the cleaning liquid dispersion tank 7 also for cleaning the piping. It is preferable that the capacity of the cleaning liquid dispersion tank 7 is set to be larger than that of the cleaning liquid storage tank 1.
【００１７】また洗浄液分散タンク７の内部には、液攪
拌手段７ａが設けられていて、送り込まれた洗浄液Ｌと
スラッジＳとを均一に混合し、分散させることができる
ことが必要である。そして、スラッジＳを洗浄液Ｌ中に
均一に分散させることによって、洗浄液再生作業の負荷
の平準化が可能となり、省力化の達成が容易となる。こ
こで液攪拌手段７ａの形式や構造は特に限定されるもの
ではないが、洗浄液分散タンク７内部及び液攪拌手段７
ａの清掃や保守の容易さなどの点から、例えば気泡式な
どの攪拌手段が好ましく用いられる。Further, it is necessary that a liquid stirring means 7a is provided inside the cleaning liquid dispersion tank 7 so that the supplied cleaning liquid L and sludge S can be uniformly mixed and dispersed. Then, by uniformly dispersing the sludge S in the cleaning liquid L, the load of the cleaning liquid regeneration operation can be leveled, and labor saving can be easily achieved. Here, the form and structure of the liquid stirring means 7a are not particularly limited, but the inside of the cleaning liquid dispersion tank 7 and the liquid stirring means 7 are not limited.
From the viewpoint of easy cleaning and maintenance of a, for example, a bubble type stirring means is preferably used.
【００１８】上記の洗浄液分散タンク７内でスラッジＳ
を均一に分散した洗浄液Ｌは、送液ポンプ８により固液
分離装置９に送られて、スラッジＳが分離除去され、ス
ラッジを殆ど含まない洗浄液が回収される。ここで用い
られる固液分離装置９としては、洗浄液再生作業の負荷
の平準化の点から、特に連続式の分離装置であることが
好ましい。更にスラッジ分離促進用の薬剤による汚染発
生の点、分離されたスラッジの取扱や、分離装置の清掃
の容易さなどの点から、凝集沈澱分離や濾過分離方式よ
りも遠心分離方式の装置の方が好ましく、特に本発明の
場合、横型の連続遠心分離機を用いるのが有利である。The sludge S is stored in the cleaning liquid dispersion tank 7 described above.
The cleaning liquid L in which is uniformly dispersed is sent to the solid-liquid separation device 9 by the liquid feed pump 8, the sludge S is separated and removed, and the cleaning liquid containing almost no sludge is recovered. The solid-liquid separator 9 used here is preferably a continuous separator from the viewpoint of leveling the load of the cleaning liquid regeneration operation. Furthermore, from the viewpoints of the occurrence of contamination by chemicals for promoting sludge separation, the handling of separated sludge, and the ease of cleaning of the separation device, the centrifugal separation system is preferable to the coagulation sedimentation separation or filtration separation system. Preferably, especially in the case of the present invention, it is advantageous to use a horizontal continuous centrifuge.
【００１９】ところで、ＣＩＰに使用される洗浄液は界
面活性剤を含むために、泡立ちが起こり易い。従って連
続遠心分離機などの固液分離装置９には、洗浄液分散タ
ンク７内で発生した泡を含む洗浄液が送り込まれること
があるので、本発明において使用される固液分離装置９
は、泡が発生しても分離能率が低下しない性能を有して
いることが必要である。By the way, since the cleaning liquid used for CIP contains a surfactant, foaming easily occurs. Therefore, since the cleaning liquid containing bubbles generated in the cleaning liquid dispersion tank 7 may be fed to the solid-liquid separation device 9 such as a continuous centrifuge, the solid-liquid separation device 9 used in the present invention.
Needs to have a property that the separation efficiency does not decrease even if bubbles are generated.
【００２０】本発明で使用される横型の連続遠心分離機
としては、図２及び図３に示すような構造を有するもの
が好適である。連続遠心分離機９′の液排出部に、回転
軸より離れた位置に切り欠き９ｂが形成されたバッフル
板９ａを設けると共に、必要に応じて円形堰板などを設
けて、泡の流出を阻止しながら液のみが回収できるよう
にしている。従って、泡部分は内部に滞留している間に
破泡が進み、泡に捕捉されたスラッジも分離して回収さ
れるので、長時間連続運転しても分離効率が低下するこ
とはなく、また運転停止後の清掃も極めて容易である。
そのうえ、分離されるスラッジの水分含有量が少なくて
廃棄処理が容易であり、洗浄液の回収効率が高く、しか
も装置の清掃に伴って発生する排水による環境汚染を防
止することができる利点がある。The horizontal continuous centrifuge used in the present invention preferably has a structure as shown in FIGS. 2 and 3. A baffle plate 9a having a notch 9b formed at a position away from the rotating shaft is provided at the liquid discharge part of the continuous centrifugal separator 9'and a circular dam plate is provided as necessary to prevent bubbles from flowing out. However, only the liquid can be collected. Therefore, while the foam portion breaks down while staying inside, the sludge trapped in the foam is also separated and collected, so that the separation efficiency does not decrease even after continuous operation for a long time. Cleaning after operation is extremely easy.
In addition, the sludge to be separated has a low water content, is easy to dispose of, has a high recovery efficiency of the cleaning liquid, and has the advantage of being able to prevent environmental pollution due to waste water generated by cleaning the device.
【００２１】上記のような固液分離装置９によってスラ
ッジが分離除去された洗浄液は、そのまま回収されて洗
浄液貯留タンク１に戻される。その際、洗浄液貯留タン
ク１が既に水洗などによって清浄化されていれば、回収
された洗浄液は必要に応じて洗浄剤や水等を追加するな
どにより組成を調整して、処理用機器の洗浄に使用する
ことができる。しかし、洗浄液貯留タンク１がスラッジ
Ｓを含んだ洗浄液を送り出したままで、その内壁などに
汚れが付着しているときは、回収された洗浄液を洗浄液
貯留タンク１の内部などの洗浄に利用することができ
る。The cleaning liquid from which sludge has been separated and removed by the solid-liquid separation device 9 as described above is directly recovered and returned to the cleaning liquid storage tank 1. At that time, if the cleaning liquid storage tank 1 has already been cleaned by washing with water or the like, the composition of the recovered cleaning liquid is adjusted by adding a cleaning agent, water, or the like as necessary to clean the processing equipment. Can be used. However, when the cleaning liquid storage tank 1 is still delivering the cleaning liquid containing the sludge S and the inner wall or the like is contaminated, the recovered cleaning liquid can be used for cleaning the inside of the cleaning liquid storage tank 1 or the like. it can.
【００２２】こうして洗浄液貯留タンク１などの清掃に
利用されてスラッジＳなどの汚れを含むに至った洗浄液
は、洗浄液分散タンク７内に入ってスラッジＳを含む洗
浄液と均一に混合し、再び固液分離装置９に送り出され
て再生処理装置内を循環することになる。そして、洗浄
液貯留タンク１や送液ポンプ４及び配管等から剥離性固
形物の除去が終了した後に、洗浄液貯留タンク１に洗浄
液の貯留が開始され、最終的にはスラッジを含まない洗
浄液として、全て洗浄液貯留タンク１に回収される。The cleaning liquid thus used for cleaning the cleaning liquid storage tank 1 and the like and containing dirt such as sludge S enters the cleaning liquid dispersion tank 7 and is uniformly mixed with the cleaning liquid containing sludge S, and again solid-liquid. It is sent to the separation device 9 and circulated in the regeneration processing device. Then, after the removal of the peelable solids from the cleaning liquid storage tank 1, the liquid feed pump 4, the piping, etc. is completed, the cleaning liquid storage tank 1 starts to store the cleaning liquid, and finally, as the cleaning liquid containing no sludge, It is collected in the cleaning liquid storage tank 1.
【００２３】その後、回収された洗浄液についてＭ／Ｐ
比、ＣＯＤ、ＢＯＤ、ＳＳ（Suspended Solid ）などを
必要に応じて測定し、これらを指標と比較して洗浄液の
残存洗浄能力及び汚れ蓄積度を評価する。そして、これ
らの評価結果に従って、回収された洗浄液をそのまま再
使用するか、成分調整のうえ再使用するか、或いは廃棄
するかを決定する。このようにして再使用可能と判定さ
れたときは、必要に応じて洗浄剤や水等を追加するなど
によって洗浄液の組成を調整し、処理用機器の洗浄に使
用する。Thereafter, M / P is applied to the collected cleaning liquid.
The ratio, COD, BOD, SS (Suspended Solid), etc. are measured as necessary, and these are compared with indexes to evaluate the residual cleaning ability of the cleaning liquid and the degree of dirt accumulation. Then, according to these evaluation results, it is determined whether the collected cleaning liquid is reused as it is, is reused after adjusting the components, or is discarded. When it is determined that the cleaning liquid can be reused in this manner, the composition of the cleaning liquid is adjusted by adding a cleaning agent, water, or the like as needed, and the cleaning liquid is used for cleaning the processing equipment.
【００２４】更に、清掃が必要な処理用機器が複数組存
在する場合、特に処理用機器によって取り扱われる原料
や製品が異なるときには、汚れの性質が異なることがあ
るので、処理用機器に対応してそれぞれ別途に調製した
洗浄液を使い分けることが望まれる。そこで、それぞれ
の処理用機器に対応した洗浄液貯留タンクを複数個用意
して、これに収容しておいた専用の洗浄液を使用する。
この場合、これらの複数種の洗浄液の再生処理装置とし
て、洗浄液分散タンク、送液ポンプ、固液分離装置など
を一組だけ用意し、前記の複数個の洗浄液貯留タンクの
うちの１個と組み合わせて順次に再生処理を行うことに
より、一組の再生処理装置を共通に使用することができ
る。Further, when there are a plurality of processing equipments that need cleaning, especially when the raw materials and products handled by the processing equipments are different, the nature of stains may be different. It is desirable to use the separately prepared cleaning solutions. Therefore, a plurality of cleaning liquid storage tanks corresponding to the respective processing equipment are prepared, and the dedicated cleaning liquid contained therein is used.
In this case, only one set of a cleaning liquid dispersion tank, a liquid feed pump, a solid-liquid separation device, etc. is prepared as a regeneration treatment device for these plural types of cleaning liquids, and is combined with one of the plurality of cleaning liquid storage tanks. By sequentially performing the reproduction process, a set of reproduction processing devices can be commonly used.
【００２５】即ち、かかる洗浄液の再生処理装置は、各
洗浄液貯留タンクから洗浄液分散タンクへの送液配管、
及び固液分離装置から各洗浄液貯留タンクへの送液配管
に、各洗浄液貯留タンクの内のいずれか１個を選択し
て、それと接続する切り換え手段が設けてある点を除い
て、前述の洗浄液貯留タンクが１個である場合と全く同
様の構成を有する。そして上記の切り換え手段を操作す
る以外は、全く同様の洗浄液の再生処理方法が適用でき
る。That is, the cleaning liquid regenerating apparatus is provided with a liquid feed pipe from each cleaning liquid storage tank to the cleaning liquid dispersion tank,
And the cleaning liquid described above except that a switching means for selecting any one of the cleaning liquid storage tanks and connecting it to the liquid supply pipe from the solid-liquid separation device to each cleaning liquid storage tank is provided. The structure is exactly the same as when there is only one storage tank. Except for operating the switching means, the completely same cleaning liquid regeneration treatment method can be applied.
【００２６】[0026]
【実施例】乳加工設備の内部を洗浄清掃するために、図
１の構成を有するＣＩＰ設備を設けた。この設備は、容
量２ｍ3 の洗浄液貯留タンク１、送液ポンプ２、容量
１．５ｍ3 のサブタンク６等の機器、及び乳加工設備内
の処理用機器３と前記の機器とを接続する配管等を含む
主装置と、送液ポンプ４、容量２ｍ3 の洗浄液分散タン
ク７、送液ポンプ８、固液分離装置９、及びこれらの機
器に接続し、また前記の洗浄液貯留タンク１やサブタン
ク６とも接続する配管等を含む洗浄液再生装置とからな
っている。そして、この洗浄液分散タンク７内の底部に
は、空気吹き込み式の気泡発生ノズルを設けて液攪拌手
段７ａとしてある。また、ここで用いている固液分離装
置９は、図２及び３に示される構造を有する横型の連続
遠心分離機９′（三菱化工機製、分離板型デカンタセン
トリフュージＤＳ１０Ｖ、200 l/h ）である。EXAMPLE In order to clean and clean the inside of the milk processing equipment, a CIP equipment having the configuration of FIG. 1 was provided. This equipment includes equipment such as a cleaning liquid storage tank 1 having a capacity of 2 m 3, a liquid feed pump 2, a sub tank 6 having a capacity of 1.5 m 3 , and a pipe connecting the processing equipment 3 in the milk processing equipment with the above equipment. Connected to the main device including the liquid supply pump 4, the cleaning liquid dispersion tank 7 having a capacity of 2 m 3 , the liquid supply pump 8, the solid-liquid separation device 9 and these devices, and also the cleaning liquid storage tank 1 and the sub tank 6 described above. It consists of a cleaning liquid regenerator including connecting pipes. An air-blowing bubble generating nozzle is provided at the bottom of the cleaning liquid dispersion tank 7 to serve as liquid stirring means 7a. The solid-liquid separator 9 used here is a horizontal continuous centrifuge 9 ′ (manufactured by Mitsubishi Kakoki, decanter centrifuge DS10V, 200 l / h, manufactured by Mitsubishi Kakoki) having the structure shown in FIGS. 2 and 3. is there.
【００２７】このような装置によって再生処理される洗
浄液は、加熱殺菌処理を受ける牛乳が接触する機器の内
面に付着し、変性して生じた汚れを、アルカリ洗剤（例
えば理工協産製、エクリン１１０号Ｆなど）の４％溶液
で溶解分散することによって生成したものである。この
ような洗浄液は、必要の都度組成の調整を行うだけで処
理用機器３の洗浄に繰り返し使用した場合、例えばその
性状や汚れの含量が表１のように変化していた。しか
し、洗浄液貯留タンク１の底部に沈積した洗浄液中のス
ラッジＳが、洗浄液の再使用に際して混入するために、
上澄み洗浄液中の懸濁固形物、すなわちＳＳが見掛け上
あまり増加していなくても、処理用機器３の洗浄清掃が
不充分となり易かった。そのため、Ｍ／Ｐ比が１．１以
上、ＣＯＤが５０００mg/l以上、ＢＯＤが３０００mg/l
以上、或いはＳＳが２０００mg/l以上という使用寿命の
指標値にはこだわることなく、従来は２５回以上の繰り
返し使用をしないことにしていた。The cleaning liquid regenerated by such a device adheres to the inner surface of the equipment that is contacted with the milk subjected to heat sterilization and denatures the resulting dirt, and the resulting dirt is treated with an alkaline detergent (for example, Rinko Kyosan's Eclin 110). No. F, etc.) and dissolved and dispersed in a 4% solution. When such a cleaning liquid is repeatedly used for cleaning the processing equipment 3 only by adjusting the composition as needed, for example, its properties and the content of dirt change as shown in Table 1. However, since the sludge S in the cleaning liquid deposited on the bottom of the cleaning liquid storage tank 1 mixes in when the cleaning liquid is reused,
Even if the suspended solids in the supernatant cleaning liquid, that is, SS apparently did not increase so much, the cleaning and cleaning of the processing equipment 3 was likely to be insufficient. Therefore, M / P ratio is 1.1 or more, COD is 5000 mg / l or more, BOD is 3000 mg / l
In the past, it was decided not to repeatedly use 25 times or more without sticking to the index value of service life of SS of 2000 mg / l or more.
【００２８】[0028]
【表１】 [Table 1]
【００２９】そこで同じ組成の洗浄液を用いて、上記と
同様に必要の都度組成の調整を行うだけで処理用機器３
の洗浄を行い、１０回繰り返し使用した後に、本発明の
洗浄液の再生処理方法を実施した。すなわち、洗浄液貯
留タンク１内の汚れた洗浄液Ｌを洗浄液分散タンク７に
全量を移送し、空気攪拌によって均一に混合したのち連
続遠心分離機９′に送ってスラッジＳを分離し、洗浄液
を洗浄液貯留タンク１に戻すことによって系内を循環さ
せた。こうして、沈積したスラッジＳを除去した洗浄液
貯留タンク１内に、スラッジＳを分離した後の洗浄液を
回収した。こうして回収した洗浄液中のＳＳは、５００
mg/l前後までに低下していた。なお、連続遠心分離機
９′から得られたスラッジＳは、水分３０〜５０重量％
であり、その乾固物は灼熱減量１７．５重量％、カルシ
ウム（ＣａＯとして）４０．９重量％、燐（Ｐ2 Ｏ5 と
して）３６．５重量％、シリカ（ＳｉＯ2 として）４．
３重量％の無機質主体のものであった。Therefore, using the cleaning liquid of the same composition, the composition of the processing equipment 3 is adjusted by adjusting the composition whenever necessary in the same manner as described above.
Was washed and repeatedly used 10 times, and then the method for regenerating the cleaning liquid of the present invention was carried out. That is, the entire amount of the dirty cleaning liquid L in the cleaning liquid storage tank 1 is transferred to the cleaning liquid dispersion tank 7 and uniformly mixed by air agitation, and then sent to the continuous centrifuge 9'to separate the sludge S to store the cleaning liquid. By returning to the tank 1, the system was circulated. In this way, the cleaning liquid after separating the sludge S was recovered in the cleaning liquid storage tank 1 from which the sludge S that had accumulated was removed. The SS in the cleaning liquid thus recovered is 500
It had fallen to around mg / l. The sludge S obtained from the continuous centrifuge 9'has a water content of 30 to 50% by weight.
The dry solid content is 17.5% by weight of ignition loss, 40.9% by weight of calcium (as CaO), 36.5% by weight of phosphorus (as P 2 O 5 ), and silica (as SiO 2 ) 4.
It was mainly composed of 3% by weight of inorganic matter.
【００３０】このようにして回収された洗浄液は、前記
と同様に処理用機器３の洗浄に使用し、更に１０回繰り
返し使用した後に上記と同様な再生操作を行った。この
ようにして洗浄液の使用と再生とを繰り返すことによ
り、洗浄液の汚れが蓄積する様子を調べ、その結果を表
２に示した。The cleaning liquid thus recovered was used for cleaning the processing equipment 3 in the same manner as described above, and after being repeatedly used 10 times, the same regeneration operation as above was carried out. By repeating the use and regeneration of the cleaning liquid in this manner, the state of accumulation of stains in the cleaning liquid was investigated, and the results are shown in Table 2.
【００３１】[0031]
【表２】 [Table 2]
【００３２】この結果を見ると、本発明の方法に従って
スラッジを分離することによって再生された洗浄液は、
必要の都度、水と洗浄剤を添加して組成の調整を行って
いるために、８０回もの再生使用後もなお、洗浄液のＭ
／Ｐ比、ＣＯＤ、ＢＯＤ、ＳＳ等が使用寿命の指標値に
達せず、洗浄能力に余裕を残しており、更に洗浄用に使
用が可能であることがわかる。Looking at this result, the cleaning liquid regenerated by separating the sludge according to the method of the present invention is
Since the composition is adjusted by adding water and a cleaning agent each time it is necessary, even after reusing 80 times, the M
It can be seen that the / P ratio, COD, BOD, SS, etc. did not reach the index value of the service life, leaving a margin for cleaning capacity, and that it can be used for cleaning.
【００３３】[0033]
【発明の効果】本発明の洗浄液の再生処理方法によれ
ば、処理設備内の機器を洗浄することによって洗浄液中
に蓄積し、更に洗浄液貯留タンク内に沈積したスラッジ
を、単純な運転操作によって分離除去することができる
ので、回収された洗浄液を残存洗浄能力の限度まで反復
使用することが可能となる。従って、洗浄剤の使用量を
節減できるばかりでなく、廃液の発生が少量でしかも平
準化できるから、廃液処理のための作業量及びコスト、
更には廃液処理設備費を大幅に低下させることができ
る。また本発明の洗浄液の再生処理方法は、複数組の処
理用機器をそれぞれ別の洗浄液により清掃する場合に
も、共通の再生処理装置を使用することによって好適に
実施することができ、設備費、並びに運転経費を更に大
幅に節減することが可能である。According to the method for regenerating a cleaning liquid of the present invention, the sludge accumulated in the cleaning liquid by cleaning the equipment in the processing equipment and further deposited in the cleaning liquid storage tank is separated by a simple operation operation. Since it can be removed, it becomes possible to repeatedly use the collected cleaning liquid up to the limit of the residual cleaning capacity. Therefore, not only can the amount of cleaning agent used be reduced, but also the amount of waste liquid generated can be reduced and leveled, so the amount of work and cost for waste liquid treatment,
Further, the waste liquid treatment facility cost can be significantly reduced. In addition, the cleaning liquid reclaiming method of the present invention can be preferably carried out by using a common reclaiming apparatus even when cleaning a plurality of sets of processing equipment with different cleaning liquids. In addition, it is possible to further reduce operating costs.
【図１】本発明の洗浄液の再生処理装置の構成の説明図
である。FIG. 1 is an explanatory diagram of a configuration of a cleaning liquid regeneration processing apparatus of the present invention.
【図２】本発明の洗浄液の再生処理装置に用いる固液分
離装置としての連続遠心分離機の構造を示す断面図であ
る。FIG. 2 is a cross-sectional view showing the structure of a continuous centrifuge as a solid-liquid separator used in the cleaning liquid regeneration treatment device of the present invention.
【図３】図２の連続遠心分離機に組み込まれたバッフル
板の正面図である。FIG. 3 is a front view of a baffle plate incorporated in the continuous centrifuge of FIG.
【図４】従来の洗浄液の再生処理装置の構成の説明図で
ある。FIG. 4 is an explanatory diagram of a configuration of a conventional cleaning liquid regeneration processing apparatus.
１ 洗浄液貯留タンク ２ 送液ポンプ ３ 処理用機器 ４ 送液ポンプ ５ 濾過装置 ６ サブタンク ７ 洗浄液分散タンク ７ａ 液攪拌手段 ８ 送液ポンプ ９ 固液分離装置 ９′ 連続遠心分離機 ９ａ バッフル板 ９ｂ 切り欠き Ｌ 洗浄液 Ｓ スラッジ 1 Washing liquid storage tank 2 Liquid feeding pump 3 Processing equipment 4 Liquid feeding pump 5 Filtration device 6 Sub-tank 7 Cleaning liquid dispersion tank 7a Liquid stirring means 8 Liquid feeding pump 9 Solid-liquid separation device 9'Continuous centrifuge 9a Baffle plate 9b Notch L cleaning liquid S sludge
───────────────────────────────────────────────────── フロントページの続き (72)発明者 梅原 龍吾 茨城県つくば市緑ケ原４−４ アクアス株 式会社つくば総合研究所内 (72)発明者 仲山 一十四 兵庫県神戸市灘区岩屋北町７−２−20− 1101 (72)発明者 高月 一喜 兵庫県神戸市西区池上２丁目25−６ (72)発明者 金月 博之 兵庫県神戸市西区伊川谷町前開994−２ (72)発明者 岡崎 豊 兵庫県明石市小久保２丁目１番地の27 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Ryugo Umehara 4-4 Midorigahara, Tsukuba-shi, Ibaraki AQUAS Co., Ltd., Tsukuba Research Institute (72) Inventor, Nakayama 14 14 7-2, Iwayakitamachi, Nada-ku, Kobe-shi, Hyogo −20− 1101 (72) Inventor Kazuki Takatsuki 2-5-6 Ikegami, Nishi-ku, Kobe-shi, Hyogo Prefecture 72-6 (72) Inventor Hiroyuki Kintsuki 994-2 Maekai, Ikawatani, Nishi-ku, Kobe-shi, Hyogo Prefecture (72) Inventor Yutaka Okazaki 27, 2-1, Kokubo, Akashi-shi, Hyogo
Claims (6)
ジを含む洗浄液を均一に分散させる工程と、該スラッジ
分散洗浄液からスラッジを分離除去してスラッジを含ま
ない洗浄液を回収する工程とにより、清浄な洗浄液を洗
浄液貯留タンク内に回収し、その後洗浄液中の洗浄剤含
量を調整することを特徴とする洗浄液の再生処理方法。1. A clean cleaning liquid comprising a step of uniformly dispersing a cleaning liquid containing sludge stored in a cleaning liquid storage tank, and a step of separating and removing sludge from the sludge-dispersed cleaning liquid to recover a cleaning liquid containing no sludge. Is collected in a cleaning liquid storage tank, and then the content of the cleaning agent in the cleaning liquid is adjusted.
にスラッジを含む洗浄液を移送し、洗浄液分散タンク内
で調製したスラッジ分散洗浄液を固液連続分離装置に供
給してスラッジを分離除去し、スラッジを含まない洗浄
液を回収して前記洗浄液貯留タンク内を洗浄することに
よりスラッジを含む洗浄液を生成させ、かかるスラッジ
を含む洗浄液を洗浄液分散タンクに移送して循環させる
操作を前記洗浄液貯留タンク内の洗浄液がスラッジを含
まなくなるまで継続し、洗浄液貯留タンク内に回収され
た洗浄液中の洗浄剤含量を調整することを特徴とする洗
浄液の再生処理方法。2. A cleaning liquid containing sludge is transferred from the cleaning liquid storage tank to the cleaning liquid dispersion tank, and the sludge dispersion cleaning liquid prepared in the cleaning liquid dispersion tank is supplied to a solid-liquid continuous separation device to separate and remove sludge, and to contain sludge. A cleaning liquid containing sludge is generated by recovering a cleaning liquid not contained in the cleaning liquid storage tank, and a cleaning liquid containing sludge is transferred to the cleaning liquid dispersion tank and circulated. The method for regenerating a cleaning liquid, which is characterized in that the cleaning liquid content is continuously adjusted until the cleaning liquid is no longer contained, and the content of the cleaning agent in the cleaning liquid collected in the cleaning liquid storage tank is adjusted.
と、固液連続分離装置と、これらの洗浄液貯留タンク、
洗浄液分散タンク、固液連続分離装置、及び前記の洗浄
液貯留タンクの間を順に接続して洗浄液を移送する配管
手段とを備えてなることを特徴とする洗浄液の再生処理
装置。3. A cleaning liquid storage tank, a cleaning liquid dispersion tank, a solid-liquid continuous separation device, and these cleaning liquid storage tanks,
An apparatus for regenerating a cleaning liquid, comprising: a cleaning liquid dispersion tank, a solid-liquid continuous separation device, and a pipe means for connecting the cleaning liquid storage tank in sequence to transfer the cleaning liquid.
液貯留タンクと洗浄液分散タンクとの間の配管、及び固
液連続分離装置と洗浄液貯留タンクとの間の配管に、前
記複数の洗浄液貯留タンクのいずれか１個を選択して接
続する切り換え手段をそれぞれ設けてなる請求項３に記
載の洗浄液の再生処理装置。4. A plurality of cleaning liquid storage tanks, wherein the plurality of cleaning liquid storage tanks are provided in a pipe between the cleaning liquid storage tank and the cleaning liquid dispersion tank, and in a pipe between the solid-liquid continuous separation device and the cleaning liquid storage tank. 4. The cleaning liquid regeneration processing apparatus according to claim 3, further comprising switching means for selecting and connecting any one of the above.
ものである請求項３又は４に記載の洗浄液の再生処理装
置。5. The cleaning liquid regenerating apparatus according to claim 3, wherein the cleaning liquid dispersion tank is provided with a liquid stirring means.
ある請求項３乃至５のいずれかに記載の洗浄液の再生処
理装置。6. The cleaning liquid regeneration treatment apparatus according to claim 3, wherein the solid-liquid continuous separation apparatus is a continuous centrifugal separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2952996A JP2947745B2 (en) | 1996-02-16 | 1996-02-16 | Cleaning liquid regeneration processing method and cleaning liquid regeneration processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2952996A JP2947745B2 (en) | 1996-02-16 | 1996-02-16 | Cleaning liquid regeneration processing method and cleaning liquid regeneration processing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09220547A true JPH09220547A (en) | 1997-08-26 |
| JP2947745B2 JP2947745B2 (en) | 1999-09-13 |
Family
ID=12278642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2952996A Expired - Fee Related JP2947745B2 (en) | 1996-02-16 | 1996-02-16 | Cleaning liquid regeneration processing method and cleaning liquid regeneration processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2947745B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115475447A (en) * | 2022-10-11 | 2022-12-16 | 华能济宁运河发电有限公司 | Cleaning process of cartridge filter element for recycling reclaimed water |
-
1996
- 1996-02-16 JP JP2952996A patent/JP2947745B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115475447A (en) * | 2022-10-11 | 2022-12-16 | 华能济宁运河发电有限公司 | Cleaning process of cartridge filter element for recycling reclaimed water |
| CN115475447B (en) * | 2022-10-11 | 2023-05-23 | 华能济宁运河发电有限公司 | Filter element cleaning process of cartridge filter for reclaimed water |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2947745B2 (en) | 1999-09-13 |
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