河北省某发电有限责任公司污水站自2003年10月投产以来，出水水质稳定，能达到设计要求。但是平流滤塔设计存在着不足，滤料反冲洗效率低，导致反冲洗用水量增加，反冲洗周期从设计的2 d缩短到1 d，增加了运行和管理成本。调查表明，挪威Nordic Water公司在已经安装了15 000多台动态砂滤(Dynasand)塔，其中在沙特阿拉伯的大型再生水回用工程中，安装了216台动态砂滤塔。其他国家，如日本、澳大利亚等，也相继有类似产品应用于污水处理。这次技术改造，是在国外动态过滤器技术的基础上，通过试验研究对该技术进行了消化吸收，

 ALLEN BRADLEY POWERFLEX 20F11ND8P0AA0NNNNN /A MFG:2013 5HP
 ALLEN BRADLEY 810-A08B INVERSE TIME CURRENT RELAY
 ALLEN BRADLEY 810-A03AR TIME CURRENT RELAY 810A03AR
 Allen Bradley 1784-U2DN /AB-to-Devic Adapter w/ Cable 0.61m (2ft)
 ALLEN BRADLEY 1771-IF05 12BIT ANALOG INPUT MODULE SERIES B F/W REV C
 Allen Bradley 1756-EWEB /A ControlLogix Ethe Web Server Enhanced Module
 Allen Bradley 1745-TCAT /B SLC100 Timer Counter ess Terminal w/ 1745-C1
 ALLEN BRADLEY 1336F-BRF75-AA-EN P II 7-1/2HP 480V-AC MOTOR DRIVE D435636
 ALLEN BRADLEY 1336-135768 Transistor 20HP Kit 2DI 100Z-120 WIMA FKP 1
 2711-T6C15L1 Ser B FRN 4.46 PanelView 600 Allen Bradley HMI Touchscreen
ALLEN-BRADLEY AB 509-EOD-7 SIZE 4 MOTOR STARTER CONTACTOR 230/460-575
Allen-Bradley 8720MC High Performance Drive Rockwell Automation BRAND 
Allen-Bradley 1772-LXP-C Lifetime Warranty !!!
Allen-Bradley 1771-HSN/B Lifetime Warranty !!!
Allen-Bradley 1769-L33ER (SER A) Processor/Controller Factory Sealed 2015
Allen-Bradley 1756-IF6CIS Lifetime Warranty !!!
ALLEN-BRADLEY 1747-L532 SERIES D PROCESSOR UNIT * IN BOX*
Allen-Bradley 1410-EOB50 Solid State Motor Winding Heater
ALLEN BRADLEY SP-151152  SP151152
ALLEN BRADLEY SP-151137  SP151137
Allen Bradley Servo Motor/1326AB-B430E-21 Series C
Allen Bradley Servo Motor MPL-B540K-SK24AA Series A
Allen Bradley Powerflex 70 20AE017A0AY Series A AC Drive 600V 15HP
ALLEN BRADLEY PANELVIEW 550 2711-K 2X
ALLEN BRADLEY PANELVIEW 1400e 2711E-T14C6 /G 2711RT14C6
Allen Bradley Panelview 1400/1400e replaces 2711-T14C20
Allen Bradley Panelview 1400/1400e replaces 2711-T14C1
Allen Bradley Panelview 1400/1400e replaces 2711-K14C6
Allen Bradley MPL-B540K-SK74AA Servomotor
Allen Bradley MPL-B520K-SJ22A Servo Motor
Allen Bradley MPL-B420P-MJ24AA Servo Motor
ALLEN BRADLEY MPL-A310FMK-22AA  MPLA310FMK22AA
Allen Bradley Input RFI Filter with attachment 1336-RFB-150-D
Allen Bradley DL40 P 2-Line Message Display 2706-LV2R Series A FRN 1.01
Allen Bradley CONTROL LOGIX PROCESSOR LOGIX5555 1.5MB MEM 1756-L55/A M13
Allen Bradley Control Logix 1756-PLS Series B
ALLEN BRADLEY AB INTEGRATED 2094-BM05 460V 48A Kix 6000 Servo AXIS MODULE
ALLEN BRADLEY 90042992  90042992
ALLEN BRADLEY 900211-05  90021105
Allen Bradley 900065 Circuit Board (Pack of 3) - 
ALLEN BRADLEY 852S-A  852SA
ALLEN BRADLEY 849-ZOD326  849ZOD326
ALLEN BRADLEY 845D-SJDZ2 GFW4  845DSJDZ2 GFW4
ALLEN BRADLEY 836-C63E  836C63E
ALLEN BRADLEY 823-171  823171
Allen Bradley 808R3  **GENUINE** AB 808 R3
Allen Bradley 808M2  **GENUINE** AB 808 M2
Allen Bradley 808M1  **GENUINE** AB 808 M1
ALLEN BRADLEY 808-C17  808C17
ALLEN BRADLEY 8000-EEAA  8000EEAA
Allen Bradley 77135-220-53 Circuit Board 77135-219-0 - 
ALLEN BRADLEY 74101-482-51  7410148251
Allen Bradley 715COD1223  **GENUINE** 715 COD 1223
Allen Bradley 709DAC1 NSNP **GENUINE** AB
Allen Bradley 702DAA93 NSNP **GENUINE** 702 DAA 93
ALLEN BRADLEY 634487G  634487G
ALLEN BRADLEY 6181-CGBDBBZZZ Intrial Interfacep.
ALLEN BRADLEY 6157-BEZAAZAZZZ  6157BEZAAZAZZZ
Allen Bradley 500-BOH92 500BOH92 AC Contactor 500-B0H92 Series B (Pack of 3)
ALLEN BRADLEY 5000 RPM 1.3kW V RMSL-L 230/3 PHASE AC SERVO MOTOR MPL-A320P-MJ22A
ALLEN BRADLEY 48MS-SE1PF2-M2  48MSSE1PF2M2
Allen Bradley 40171-002-01 Tansformer Module (Pack of 30) -  No Box
ALLEN BRADLEY 2755-DS4A-R1  2755DS4AR1
Allen Bradley 2711-T9C10 /C PanelView 900 Touch/Devic/RS232/AC, Read
Allen Bradley 2711-T6C8L1 /A PanelView 600 Color Touch DH+/RS-232 DC FRN 4.20
Allen Bradley 2711-T10C20 /D PanelView 1000 Color/Touch/Ethe/RS-232, Read!
Allen Bradley 2711P-T7C4D2 /A PanelView P 700 Touch 128MB Flash/RAM DC
Allen Bradley 2711P-T7C4D2 /A PanelView P 700 Touch 128 MB Flash/RAM DC
ALLEN BRADLEY 2711P-T6M3D SERIES C TOUCH SCREEN **
Allen Bradley 2711P-T6C20A /D PanelView P 600 Color Touch/RS-232 AC Qty
Allen Bradley 2711P-T6C20A /D PanelView P 600 Color Touch/RS-232 AC
Allen Bradley 2711P-T10C4D1 /A PanelView P 1000 64MB Flash/64MB RAM
ALLEN BRADLEY 2711P-RW7  2711PRW7
ALLEN BRADLEY 2711P-RP9D  2711PRP9D
Allen Bradley 2711P-RP1 Logic Module | Tested with 12 month warranty
Allen Bradley 2711P-RDT12C | PanelView P 1200 Display
ALLEN BRADLEY 2711PC-T6C20D  2711PCT6C20D
Allen Bradley 2711-K6C3 /B PanelView 600 Color/Keypad/DH-485/RS-232-Prt, Read!
Allen Bradley 2711-K 8 /H PanelView 550 Keypad/Mono/DH+/RS-232Prt FRN 4.41 Read
ALLEN BRADLEY 2707-M232P3  2707M232P3
ALLEN BRADLEY 2705-NX5  2705NX5
ALLEN BRADLEY 2705-NX13  2705NX13
ALLEN BRADLEY 2705-NX12  2705NX12
ALLEN BRADLEY 2705-NX1  2705NX1
ALLEN BRADLEY 2705-K11C1 SERIES E OPERATOR INTERFACE DISPLAY * IN A BOX*
ALLEN BRADLEY 25B-D013N104  25BD013N104
ALLEN BRADLEY 22B-B033N104  22BB033N104
ALLEN BRADLEY 2112B-DDBD-26R-98  2112BDDBD26R98
ALLEN BRADLEY 2112B-BDB-6P-24R-41  2112BBDB6P24R41
ALLEN BRADLEY 20F11ND5P0AA0NNNNN  20F11ND5P0AA0NNN
ALLEN BRADLEY 20D-DL-A0  20DDLA0
ALLEN BRADLEY 20AD5P0A1AYNNNNN  20AD5P0A1AYNNNNN
ALLEN BRADLEY 20AD5P0A0AYNNNNN  20AD5P0A0AYNNNNN
ALLEN BRADLEY 20AB2P2C3AYNAEC0  20AB2P2C3AYNAEC0
ALLEN BRADLEY 20A E 9P0 A0 AYNNNC0 SERIES A POWER FLEX 70 AC DRIVE, 
ALLEN BRADLEY 2098-DSD-HV030X-DN  2098DSDHV030XDN
ALLEN BRADLEY 2098-DSD-020X-DN  2098DSD020XDN
ALLEN BRADLEY 2098-DSD-010-DN  2098DSD010DN
ALLEN BRADLEY 2090-XXNPMP-8S25  2090XXNPMP8S25
ALLEN BRADLEY 193-B1R6A  193B1R6A
ALLEN BRADLEY 1791ESIB8X0BV4 SERIES A ETHE BLOCK GUARD 24VDC, 
Allen Bradley 1791-32A0 32 Input AC Block I/O Module ( In Box)
Allen Bradley 1785-V30B 1785V30B
Allen Bradley 1785-O5E/1785-05E/1785O5E/178505E !!
ALLEN BRADLEY 1785-O5B  1785O5B
Allen Bradley 1785-M100 /A PLC-5 EEPROM Memory Module Cartridge 100K Words
Allen Bradley 1785-/Amunication Expansion Module
Allen Bradley 1785-munication Expansion Module
ALLEN BRADLEY 1785-BCM 1785BCM SERIES B PLC-5MUNICATION MODULE 961008-85
ALLEN BRADLEY 1785-BCM 1785BCM SERIES B PLC-5MUNICATION MODULE 961008-83
ALLEN BRADLEY 1784-KT2  1784KT2
ALLEN BRADLEY 1775-S5 SERIES A I/O SCANNERMUNICATION ADAPTER
Allen Bradley 1771-OJC/1771OJC/17710JC/1771-0JC !!!!
ALLEN BRADLEY 1771-ODD  1771ODD
Allen Bradley 1771-OAD Module 1771-0AD 96234271 Rev F01 Ser C - 
ALLEN BRADLEY 1771-NOV  1771NOV
ALLEN BRADLEY 1771-HRA  1771HRA
ALLEN BRADLEY 1770-HT1  1770HT1
ALLEN BRADLEY 1769-L20  1769L20
ALLEN BRADLEY 1768-EWEB -- 1768EWEB
ALLEN BRADLEY 1761-ENI  176ENI
ALLEN BRADLEY 1756-PB75  1756PB75
ALLEN BRADLEY 1756-M16SE -- 1756M16SE
Allen Bradley 1756-M08SE Servo Control Module 1756M08SE
ALLEN BRADLEY 1756-L55M14  1756L55M14
ALLEN BRADLEY 1756-ENBT -- 1756ENBT
ALLEN BRADLEY 1756-0F8 SER.A OUTPUT MODULE DATE CODE: 08/11 *FACTORY SEALED*
ALLEN BRADLEY 1747-SDN SERIES C MODULE SCANNER DATE CODE 07/07/10 *SEALED*
Allen Bradley 1747-L542 /C FRN 8 SLC 500 SLC 5/04 Controller
ALLEN BRADLEY 1747-L30A  1747L30A
ALLEN BRADLEY 1746-P4  1746P4
ALLEN BRADLEY 1746-NT4 -FS- 1746NT4
ALLEN BRADLEY 1746-NIO4V  1746NIO4V
ALLEN BRADLEY 1746-INT4 SERIES B THERMOCOUPLE MODULE DATE CODE 11/06/10 *SEALED*
ALLEN BRADLEY 1745-LP102  1745LP102
ALLEN BRADLEY 160-BA04NPS1  160BA04NPS1
采用“连续动态过滤”技术对该污水处理站1号，2号平流滤塔进行改造，并达到了预期的效果。 平流滤塔改造原因污水站采用的过滤装置为普通平流滤塔(高4 m，直径2．3 In)，改造前滤塔内部结构见图1。该滤塔采用双层滤料，上层为石英砂，下层为水淬渣，反冲洗方式采用大阻力配水系统气水联合反冲洗。平流滤塔存在的问题：①反冲洗采用大阻力配水系统，每天反冲洗15n1in，消耗大量水资源和电能；② 在传统的常压反冲洗系统中，存在着反冲洗不彻底、滤料需要定期更换的问题。
ALLEN BRADLEY 1336S-BRF20-AA-ES5-HA2  1336SBRF20AAES5H
ALLEN BRADLEY 1336S-BRF20-AA-EN-L6E  1336SBRF20AAENL6
ALLEN BRADLEY 1336S-BRF20-AA-EN-L4  1336SBRF20AAENL4
ALLEN BRADLEY 1336S-BRF20-AA-EN5-HAP-L6  1336SBRF20AAEN57
ALLEN BRADLEY 1336S-BRF20-AA-EN5-HA2-L6E  1336SBRF20AAEN51
ALLEN BRADLEY 1336S-BRF20-AA-EN4-HAB-L6E  1336SBRF20AAEN41
ALLEN BRADLEY 1336S-BRF20-AA-EN4-HAB-L6  1336SBRF20AAEN45
ALLEN BRADLEY 1336S-BRF20-AA-EN4-HA2-L5  1336SBRF20AAEN4L
ALLEN BRADLEY 1336S-BRF20-AA-EN4-HA2  1336SBRF20AAEN43
ALLEN BRADLEY 1336S-BRF20-AA-EN4-HA1-L4  1336SBRF20AAEN4
ALLEN BRADLEY 1336S-BRF20-AA-EN  1336SBRF20AAEN
ALLEN BRADLEY 1336S-BRF05-AE-EN4-HAB-L5E  1336SBRF0 EEN4H
ALLEN BRADLEY 1336S-AQF10-AA-EN-HCS2-L6E  1336SAQF10AAENHC
ALLEN BRADLEY 1336F-CWF150-AN-EN 15HP 60HZ 400HZ 19A 20.1A CT AC DRIVE B349649
ALLEN BRADLEY 1336F-C025-AN-EN 25HP 575V 50/60-400HZ 31/30A AC DRIVE B303448
Allen Bradley 1336FBRF30ANEN  **GENUINE** AB
ALLEN BRADLEY 1336F-BRF100-AN-EN-HAS1-L6  1336FBRF100ANEN2
ALLEN BRADLEY 1336F-BRF100-AA-EN-HAS2  1336FBRF100AAE10
ALLEN BRADLEY 1336-B007-EOD-L3  1336B007EODL3
ALLEN BRADLEY 1336 B003-EAD-L3 DRIVE
ALLEN BRADLEY 1333-YAN  1333YAN
Allen Bradley 1333-YAB/A 4. mp 480VAC
ALLEN BRADLEY 1332-CAA  1332CAA
ALLEN BRADLEY 1305-BA04A-FR  1305BA04AFR
ALLEN BRADLEY 1305-BA04A-ES-HAP  1305BA04AESHAP
Allen Bradley 105C09AAA4F  **GENUINE** AB
ALLEN BRADLEY 100S-D180EA22C  100SD180EA22C
ALLEN BRADLEY 100-B180ND3  100B180ND3
AB Allen Bradley 8000XKBM 900166 Printed Curcuit Board AB REFURBISHED
7300-UPV ALLEN BRADLEY ELECTRONIC CIRCUIT BOARD REMANUFACTURED
7300-UBA2 ALLEN BRADLEY ELECTRONIC CIRCUIT BOARD REMANUFACTURED
20AD2P1A0AYNNNNN ALLEN BRADLEY CONTROLLERS REMANUFACTURED
2014  Sealed 1756-EN2T Allen Bradley ControlLogix Ethe /D FW 10.007 PLC
151096 Allen Bradley POWER SUPPLY BOARD 200HP BASE DRIVER
151096 Allen Bradley POWER SUPPLY BOARD 200HP BASE DRIVER
1 brand  ALLEN BRADLEY 2098-DSD-010-SE AB SERVO CONTROLLER
* SEALED* 2015! Allen Bradley 1756-EN2T /D ControlLogix Ethe Bridge
* 2012 SEALED * Allen Bradley 1756-OF8 Analog Output Module 1756-0F8
* 2010 Tested * Allen Bradley 1769-L32EpactLogix Ethe Processor
(R1-1)  ALLEN BRADLEY 150-A16JB SOFT START IN ENCLOSURE
(7600) Allen Bradley Solid State Current Monitor Relay 813S-COWEA
(4831) Allen Bradley Maic OL Relay 810-A351811