ITMO20080291A1 - PLANT FOR TREATMENT AND RECYCLING OF WATERS FROM CORRUGATED CARDBOARD PROCESSES - Google Patents
PLANT FOR TREATMENT AND RECYCLING OF WATERS FROM CORRUGATED CARDBOARD PROCESSES Download PDFInfo
- Publication number
- ITMO20080291A1 ITMO20080291A1 IT000291A ITMO20080291A ITMO20080291A1 IT MO20080291 A1 ITMO20080291 A1 IT MO20080291A1 IT 000291 A IT000291 A IT 000291A IT MO20080291 A ITMO20080291 A IT MO20080291A IT MO20080291 A1 ITMO20080291 A1 IT MO20080291A1
- Authority
- IT
- Italy
- Prior art keywords
- tank
- sludge
- sent
- plant according
- plant
- Prior art date
Links
- 238000004064 recycling Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 230000008569 process Effects 0.000 title claims description 4
- 239000003643 water by type Substances 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000010802 sludge Substances 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 238000005352 clarification Methods 0.000 claims description 6
- 238000000265 homogenisation Methods 0.000 claims description 5
- 230000008719 thickening Effects 0.000 claims description 5
- 239000003139 biocide Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 239000003657 drainage water Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 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 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- WZWGGYFEOBVNLA-UHFFFAOYSA-N sodium;dihydrate Chemical compound O.O.[Na] WZWGGYFEOBVNLA-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Description
DESCRIZIONE DESCRIPTION
annessa a domanda di brevetto per INVENZIONE INDUSTRIALE avente per titolo:IMPIANTO DI TRATTAMENTO E RICICLO DELLE ACQUE PROVENIENTI DA PROCESSI DI LAVORAZIONE DI CARTONE ONDULATO attached to a patent application for INDUSTRIAL INVENTION entitled: TREATMENT AND RECYCLING PLANT OF WATER COMING FROM PROCESSES OF CORRUGATED CARDBOARD
Forma oggetto del presente trovato un impianto di trattamento e riciclo delle acque provenienti da processi di lavorazione di cartone ondulato. The present invention relates to a plant for the treatment and recycling of water from corrugated cardboard manufacturing processes.
Come noto, nei procedimenti di trattamento delle acque ed in particolare delle acque provenienti dalla produzione di cartone, ? previsto che le acque affluiscano ad una vasca di accumulo e omogeneizzazione all'interno della quale viene insufflata aria compressa a bassa pressione prodotto da un'apposita elettrosoffiante e distribuita tramite tubazioni forate disposto sul fondo della vasca. As is known, in the processes of water treatment and in particular of the waters coming from the production of cardboard,? it is foreseen that the waters flow to an accumulation and homogenization tank inside which low pressure compressed air produced by a special electric blower is blown and distributed through perforated pipes placed on the bottom of the tank.
Da questa vasca i reflui vengono automaticamente ripresi tramite un'elettropompa volumetrica che l'invia a portata costante ad un impianto di trattamento chimico - fisico. From this tank the wastewater is automatically taken up by a volumetric electric pump that sends it at a constant flow rate to a chemical-physical treatment plant.
Le acque giungono quindi ad una vasca di contatto e reazione con un reagente coagulante la cui azione determina la destabilizzazione delle sostanze inquinanti colloidali e la loro trasformazione in microfiocchi di fango. The water then reaches a contact and reaction tank with a coagulating reagent whose action determines the destabilization of the colloidal pollutants and their transformation into micro-flakes of mud.
E' previsto il dosaggio di un secondo reagente il "polielettrolita" per favorire l'aggregazione e la crescita dei microfiocchi che ingloberanno anche meccanicamente quelle particelle rimaste ancora in sospensione. The dosage of a second reagent, the "polyelectrolyte", is foreseen to favor the aggregation and growth of the micro flakes which will also mechanically incorporate those particles still remaining in suspension.
E' prevista successivamente una fase di sedimentazione in una successiva vasca . A sedimentation phase is subsequently envisaged in a subsequent tank.
La particolare geometria di quest'ultima vasca a pianta circolare con fondo conico, determina una netta separazione dei fiocchi che si addensano sul fondo. The particular geometry of this latter tank with a circular plan with a conical bottom, determines a clear separation of the flakes that thicken on the bottom.
Le acque chiarificate fuoriescono per sfioramento superficiale dalla vasca d? sedimentazione, mentre i fiocchi addensati sul fondo verranno estratti tramite un elettropompa volumetrica per essere inviati ad una vasca di ispessimento con lo scopo di ottenere una sostanziale riduzione del suo tenore di acqua. The clarified waters come out by surface skimming from the tank d? sedimentation, while the flocks thickened on the bottom will be extracted by means of a volumetric electric pump to be sent to a thickening tank with the aim of obtaining a substantial reduction of its water content.
Questa vasca e' attrezzata con un agitatore lento per impedire la formazione sul fondo di ponti di fango. This tank is equipped with a slow agitator to prevent mud bridges from forming on the bottom.
A questo punto il fango ispessito viene prelevato mediante un'elettropompa volumetrica ed inviato alla disidratazione meccanica mediante centrifuga. At this point the thickened sludge is removed by means of a volumetric electric pump and sent to mechanical dehydration by means of a centrifuge.
L'impianto sopra descritto pur risolvendo il problema della depurazione delle acque, si ? dimostrato molto lento con costi di esercizio elevati . The plant described above while solving the problem of water purification, yes? proved very slow with high running costs.
Scopo del presente trovato ? quello di eliminare l'inconveniente sopra lamentato ed in particolare di: Purpose of the present invention? that of eliminating the aforementioned inconvenience and in particular of:
velocizzare il ciclo di produzione dei fanghi; speed up the sludge production cycle;
. di semplificare l'impianto riducendo la potenza elettrica installata; . to simplify the system by reducing the installed electrical power;
. di semplificare ed eliminare la preparazione dei prodotti reagenti; . to simplify and eliminate the preparation of reagent products;
il tutto senza compromettere il grado di depurazione delle acque. all without compromising the degree of water purification.
L'impianto oggetto del presente trovato presenta il vantaggio di triplicare la velocit? di produzione dei fanghi a parit? di portata delle acque da trattare, con notevole risparmio di energia elettrica e di prodotti reagenti The plant object of the present invention has the advantage of tripling the speed? of production of sludge in parity? flow rate of the water to be treated, with considerable savings in electricity and reagent products
Questo scopo ed altri scopi e vantaggi sono tutti raggiunti dall'impianto di trattamento e di riciclo delle acque di lavaggio , oggeto del presente trovato, che si caratterizza per quanto previsto nelle sotto riportate rivendicazioni This object and other objects and advantages are all achieved by the washing water treatment and recycling plant, object of the present invention, which is characterized by the provisions of the following claims
Carateristiche e vantaggi risulteranno maggiormente evidenziati dalla descrizione seguente di una preferita forma di realizzazione illustrata, a puro titolo esemplificativo e non limitativo, nelle unite tavole di disegno in cui le figure: Characteristics and advantages will be better highlighted by the following description of a preferred embodiment illustrated, purely by way of non-limiting example, in the accompanying drawing tables in which the figures:
1, 2, 3, 4, e 5 illustrano , in forma schematica e in sequenza l'impianto oggeto del presente trovato. 1, 2, 3, 4, and 5 illustrate, in schematic and sequential form, the plant according to the present invention.
Con riferimento alla figura 1, con 1 e' stato indicato un impianto di sgrigliatura costituita da una vasca 2 entro la quale viene inviata l'acqua 3 da trattare . With reference to Figure 1, 1 indicates a screening plant consisting of a tank 2 into which the water 3 to be treated is sent.
Dal fondo della vasca 2, pesca uno sgrigliatore 4 che provvede ad estrarre le parti pesanti e grossolane che vengono raccolte in un contenitore 5. Gi? nella vasca 2 si pu? aggiungere vantaggiosamente acido cloridrico in quanto si possono creare fanghi da inviare direttamente ad un serbatoio 18 che sar? descritto in seguito From the bottom of the tank 2, he draws a screen cleaner 4 which removes the heavy and coarse parts which are collected in a container 5. Already? in the tank 2 you can? advantageously add hydrochloric acid as it is possible to create sludge to be sent directly to a tank 18 which will be described below
Una pompa sommersa 6 pesca l'acqua per inviarla in una vasca di accumulo ed omogeneizzazione 7 entro la quale viene inviata dosata polvere di diclorosilicianurato sodio biidrato collocata in un serbatoio 12. A submersible pump 6 draws the water to send it to an accumulation and homogenization tank 7 into which a dosed powder of dichlorosilicyanurate sodium dihydrate placed in a tank 12 is sent.
In alternativa potr? essere inviato metalbisolfito di sodio. Nella vasca 7 sono presenti indicatori di livello massimo ,di esercizio e minimo Alternatively I can? be sent sodium metal bisulfite. Tank 7 contains maximum, operating and minimum level indicators
Nella vasca 7 si ottiene una prechiarificazione delle acque con un PH di 6- 6,5 ; le particelle che vanno sul fondo vengono inviate direttamente al serbatoio 18 In tank 7 a pre-clarification of the water is obtained with a PH of 6-6.5; the particles that go to the bottom are sent directly to the tank 18
Come meglio illustrato in fig. 2, dalla vasca 7 il prodotto viene pescato da una pompa 9 ed inviato , tramite un condotto 41, ad una vasca di reazione 10 provvista di agitatore 11 (vedi fig. 3). As better illustrated in fig. 2, from tank 7 the product is drawn by a pump 9 and sent, through a duct 41, to a reaction tank 10 equipped with agitator 11 (see Fig. 3).
Nella vasca di reazione 10 pu? essere inviato acido cloridrico o acido fosforico stoccato nel serbatoio 13., nel caso che il grado di acidit? misurato nella vasca 7 non sia soddisfacente. In the reaction tank 10 can? be sent hydrochloric acid or phosphoric acid stored in the tank 13., in the event that the degree of acidity? measured in tank 7 is not satisfactory.
L'acqua miscelata con i reagenti viene inviata, per il principio dei vasi comunicanti, ad una vasca di chiarificazione 16 di forma cilindrica e fondo tronco conico per raccogliere il sedimento fangoso e di inviarlo tramite una pompa 17 e tubazione 42, ad un serbatoio di ispessimento fanghi 18 (vedi f?g. 4). The water mixed with the reagents is sent, by the principle of communicating vessels, to a clarification tank 16 with a cylindrical shape and a truncated cone bottom to collect the muddy sediment and send it through a pump 17 and pipe 42, to a tank of thickening of sludge 18 (see f? g. 4).
L'acqua per sfioramento dal serbatoio di chiarificazione 16 viene inviato ad un serbatoio di accumulo e rilancio 19, da dove tramite una pompa 20, viene inviata l'acqua in un serbatoio di accumulo 21 delle acque trattate. The water by skimming from the clarification tank 16 is sent to an accumulation and recovery tank 19, from where the water is sent by means of a pump 20 to an accumulation tank 21 for the treated water.
In detto serbatoio 21 entra una sonda per il controllo e la regolazione del PH . In said tank 21 enters a probe for the control and regulation of the PH.
Nel serbatoio di accumulo 21 viene immesso tramite una pompa di dosaggio 22 un biocida stoccato in un serbatoio 23. A biocide stored in a tank 23 is introduced into the storage tank 21 by means of a dosing pump 22.
L'acqua viene quindi prelevata nel serbatoio di accumulo e inviata tramite una pompa 26 alla riciclo. The water is then drawn into the storage tank and sent through a pump 26 for recycling.
La vasca di ispessimento fanghi 18, prevede un agitatore 27 (vedi f?g. 4) per amalgamare e rendere uniforme la densit? del fango. The sludge thickening tank 18 provides for an agitator 27 (see f? G. 4) to amalgamate and make uniform the density? some mud.
Dal fondo della vasca 18 viene prelevato il fango e convogliato, tramite una pompa 28 e condotto 43, ad una stazione di disidratazione fanghi del tipo centrifugo indicato nel suo complesso con 29 ( ved. Fig. 5). The sludge is taken from the bottom of the tank 18 and conveyed, by means of a pump 28 and conduit 43, to a sludge dewatering station of the centrifugal type indicated as a whole with 29 (see Fig. 5).
E' previsto un condotto 44 per il ricircolo del fango in caso di interruzione della stazione centrifuga 29 A duct 44 is provided for the recirculation of the sludge in case of interruption of the centrifugal station 29
Il fango praticamente asciutto viene preso da una coclea di sollevamento 30 ed inviato di un cassone di raccolta 32 per essere smaltito secondo le norme di legge. The practically dry sludge is taken by a lifting screw 30 and sent to a collection bin 32 to be disposed of in accordance with the law.
L'acqua di drenaggio estratta dal fango ,cade in una sottostante vasca 40 dove viene pescata da una sommersa 31 e rimandata nella vasca di accumulo e omogeneizzazione 7. The drainage water extracted from the mud falls into an underlying tank 40 where it is drawn by a submerged 31 and returned to the accumulation and homogenization tank 7.
E' pure previsto un serbatoio 35 contenente antischiuma che viene inviato dosato nella vasca 30. Also provided is a tank 35 containing antifoam which is sent metered into the tank 30.
Nelle tavole sono stati indicati vari rilevatori dei parametri fondamentali da mantenere sotto controllo e che determinano i dosaggi dei vari reagenti coagulanti e biocidi o anche indicatori di livello per interrompere i cicli di dosaggio nei vari passaggi da una vasca all'altra. The tables indicate various detectors of the fundamental parameters to be kept under control and which determine the dosages of the various coagulating reagents and biocides or even level indicators to interrupt the dosage cycles in the various passages from one tank to another.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000291A ITMO20080291A1 (en) | 2008-11-13 | 2008-11-13 | PLANT FOR TREATMENT AND RECYCLING OF WATERS FROM CORRUGATED CARDBOARD PROCESSES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT000291A ITMO20080291A1 (en) | 2008-11-13 | 2008-11-13 | PLANT FOR TREATMENT AND RECYCLING OF WATERS FROM CORRUGATED CARDBOARD PROCESSES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ITMO20080291A1 true ITMO20080291A1 (en) | 2010-05-13 |
Family
ID=41125327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT000291A ITMO20080291A1 (en) | 2008-11-13 | 2008-11-13 | PLANT FOR TREATMENT AND RECYCLING OF WATERS FROM CORRUGATED CARDBOARD PROCESSES |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | ITMO20080291A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3806448A (en) * | 1971-11-08 | 1974-04-23 | E Smith | Biological waste treatment process |
| US5846425A (en) * | 1994-07-22 | 1998-12-08 | Whiteman; George R. | Methods for treatment of waste streams |
| US6287471B1 (en) * | 1998-03-09 | 2001-09-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Treatment of aqueous effluents by injection of carbon dioxide |
| US6466317B1 (en) * | 1999-02-12 | 2002-10-15 | Steen Research, Llc. | Automatic real time monitoring of true color in waste liquids |
| WO2006017738A1 (en) * | 2004-08-06 | 2006-02-16 | Opencel Llc | Method of and apparatus for converting biological materials into energy resources |
| US7422692B1 (en) * | 1999-04-12 | 2008-09-09 | Launeil Neil Sanders | Raw influent treatment processes eliminating secondary biological treatment |
-
2008
- 2008-11-13 IT IT000291A patent/ITMO20080291A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3806448A (en) * | 1971-11-08 | 1974-04-23 | E Smith | Biological waste treatment process |
| US5846425A (en) * | 1994-07-22 | 1998-12-08 | Whiteman; George R. | Methods for treatment of waste streams |
| US6287471B1 (en) * | 1998-03-09 | 2001-09-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Treatment of aqueous effluents by injection of carbon dioxide |
| US6466317B1 (en) * | 1999-02-12 | 2002-10-15 | Steen Research, Llc. | Automatic real time monitoring of true color in waste liquids |
| US7422692B1 (en) * | 1999-04-12 | 2008-09-09 | Launeil Neil Sanders | Raw influent treatment processes eliminating secondary biological treatment |
| WO2006017738A1 (en) * | 2004-08-06 | 2006-02-16 | Opencel Llc | Method of and apparatus for converting biological materials into energy resources |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202542904U (en) | Micro flotation water purifier for treating papermaking wastewater | |
| CN205874071U (en) | Thermal power plant contains coal effluent disposal system | |
| CN202223979U (en) | Integrated inclined-tube settling tank | |
| CN204502490U (en) | A kind of high-efficiency coagulative precipitation tank | |
| CN205313138U (en) | Cyclone dirt separator | |
| CN203890186U (en) | Multi-level circular sewage purifying device | |
| CN107162262A (en) | A kind of sewage disposal system | |
| ITMO20080291A1 (en) | PLANT FOR TREATMENT AND RECYCLING OF WATERS FROM CORRUGATED CARDBOARD PROCESSES | |
| CN201692732U (en) | Compressed air dewatering device | |
| CN201678540U (en) | Rain collection purification treatment device | |
| CN209081613U (en) | Washed-out sand sewage purification circulation utilizes device | |
| CN106629956A (en) | Processing device for reducing sewage sludge | |
| CN207031130U (en) | A kind of sewage disposal system | |
| CN205803170U (en) | A kind of Waste Water Treatment in coal | |
| CN110204104B (en) | Suspension medium layer filtration system based on mechanical stirring layering | |
| CN204848509U (en) | Mud water processing system | |
| CN105314905B (en) | Desulfurization gypsum dehydration process | |
| CN210302634U (en) | Desulfurized gypsum slurry moisture collecting system | |
| CN210559782U (en) | Suspension medium layer filtering system based on mechanical stirring layering | |
| CN209292163U (en) | A kind of air spinning linen processing sizing wastewater recycling device | |
| CN206970269U (en) | A kind of multi-stage sewage rotation sink device and paper plant's sewage treatment system | |
| CN208561946U (en) | A kind of purifying domestic sewage recycle device | |
| CN209193768U (en) | A kind of folded spiral shell formula filter press | |
| CN105819593B (en) | The waste water treatment system and wastewater treatment method that industrial aluminum production of articles generates | |
| CN105036497A (en) | Sewage treatment equipment provided with water dividing plate |