AdvanTex Operation and Preventive Maintenance

Transcription

1 AdvanTex Operation and Preventive Maintenance Commercial Application 2/1/2011 #1

2 O&M is Important Because... It refines/optimizes process It ensures system longevity It establishes accountability It protects the owner s investment 2/1/2011 #2

3 2/1/2011 #3

4 Effective O&M Requires... Knowing the system s configuration and components Knowing how the system operates Knowing the system s capabilities Knowing local regulatory codes (application-specific criteria) Knowing and understanding the permit requirements 2/1/2011 #4

5 Maintenance Needs and Frequencies Treatment system maintenance is dependent on... System size Configuration System loading Hydraulic Biological Permit requirements 2/1/2011 #5

6 AdvanTex O&M Manual Includes... Materials list System description Safety procedures Tools for start-up Preventive maintenance Start-up procedures Routine cleaning and maintenance procedures Monitoring and troubleshooting procedures Record of system facts Checklists and field report forms 2/1/2011 #6

7 Field Maintenance Reports Helps track labor costs Keeps records on R&R for components and any odd occurrences Helps assure that no steps are missed 2/1/2011 #7

8 Treatment Plant Maintenance 2/1/2011 #8

9 2/1/2011 #9

10 First Things First - Before going to the plant Dial into the telemetry panel Review... Current status General system operation User logs Prepare Field Maintenance Report (FMR) 2/1/2011 #10

11 Remote Telemetry Makes Maintenance Easier Orenco TeleComm panels and dedicated phone lines provide remote control Operators are automatically notified of alarms Stored system data is easily accessible remotely or at the site Orenco can communicate directly with panel to assist in troubleshooting or analysis 2/1/2011 #11

12 Tools Required for Effective Maintenance Come to the site with appropriate equipment Cordless Drill with 1/2" nut driver and 3/16" hex-head bit Voltmeter Hose, Bottle Brush, PVU Cradle, Curtain Wand FMR Form/Clipboard Always wear protective gloves/clothing 2/1/2011 #12

13 At the Treatment Plant 2/1/2011 #13

14 Getting Started Walk around the site Visually inspect Equipment for damage Tank liquid levels Unbolt pod lids Check pods for odors Look at media for even dispersal 2/1/2011 #14

15 Checking Controls and Pump Operation Measure the incoming voltage at the panel Place the MOA switch in the manual position Measure voltage and amperage of the pump(s) while running Verify pump operation Return the MOA switch to the automatic position Confirm operation of alarms, floats, and phone lines 2/1/2011 #15

16 Maintaining the Pumping System Verify no leaks in riser connections and penetrations Inspect splice box for secure, watertight connections Verify float operation and condition Verify float cords are neatly wrapped 2/1/2011 #16

17 Cleaning the Biotube Filter Cartridge Switch MOA and circuit breakers to off Remove float assembly Remove and hold cartridge over inlet of tank Carefully spray buildup into tank Bottle Brush each tube Reinsert cartridge completely into pump vault Reattach float stem 2/1/2011 #17

18 Accessibility to Water Source Some Operators use the pump 2/1/2011 #18

19 Cleaning the Pump Remove pump(s) Wash off particles, as necessary Report abnormal particles on the Field Maintenance Report Form Inspect cord for nicks or swelling Reinstall pump Reconnect discharge assemblies Repeat the above process for each pump in the system Rebuilding Pumps? 2/1/2011 #19

20 Inspecting the Recirculating Valve Check buoy for... Proper inflation if it's an inflatable ball Free movement in the cage 2/1/2011 #20

21 Checking the Recirc/Blend Tank Liquid in tank should be relatively clear with... No foam No grease/oil sheen on surface Measure sludge/scum accumulation after the 2 nd year Thereafter, measure every 3 to 5 years 2/1/2011 #21

22 Inspecting the Automatic Distributing Valve Check for... Leaks at connections Indexing Repair if necessary Springs New Disk Cam 2/1/2011 #22

23 AdvanTex Textile Filter: Inspection Inspect for odors and bridging If ponding or nuisance odors occur, may need to spray down curtains. FOG? Filamentous growth? 2/1/2011 #23

24 AdvanTex Textile Filter Characteristics of Biomat Color Should be light to dark brown, not yellow Texture Should be gelatinous, not lard-like Odor Should be musty, not pungent Moisture Should be moist, not ponding 2/1/2011 #24

25 AdvanTex Textile Filter: Oily Film There should be no signs of oil or grease on the textile or in the tank Excessive grease and oil is typically not a problem when commercial systems are properly designed and managed Close-up of G&O problems. Close-up of G&O problems. 2/1/2011 #25

26 AdvanTex Textile Filter: Pressure at the Pod AX100: Check pressure at pod inlet assembly; compare with start-up values. 2/1/2011 #26

27 AdvanTex Textile Filter: Nozzles Verify nozzles have a uniform spray 2/1/2011 #27

28 Spin Nozzles Newer AX100's and AX-Max Units have a spin nozzle that sprays a square pattern 8 nozzles vs. 32 Easy to clean Easy to remove Side Shields Pressure is psi 2/1/2011 #28

29 2 Ways to Clean Laterals Run the pump to flush Use a bottle brush 2/1/2011 #29

30 Brushing is Better Cleaning by running pump Cleaning with bottle brush 2/1/2011 #30

31 Flushing AdvanTex Laterals Open ball valves at lateral ends Rotate nozzles up Turn pump control to manual Run pump to flush laterals Turn off pump before brushing laterals 2/1/2011 #31

32 Brushing AdvanTex Laterals Clean laterals with bottle brush Run pump Close all ball valves Check nozzles for even spray distribution Clean all clogged nozzles Repeat for each pod Return pump to automatic 2/1/2011 #32

33 Cleaning the Media Remove RSV so any solids return to the recirculation tank Spray down surface of media with water If necessary, use the cleaning wand to clean media thoroughly 2/1/2011 #33

34 Checking Ventilation Fan Assembly Verify fan operation and air flow Clean ventilation fan assembly, as necessary Inspect and clean intake screen on air inlets Confirm pressure sensor operation 2/1/2011 #34

35 Miscellaneous O&M Procedures Exercise valves annually (or as necessary) to verify operation Review Maintenance Checklist in your AdvanTex O&M Manual Ensure all activities have been performed Document on the Field Maintenance Report Form Send all performance reports to Orenco 2/1/2011 #35

36 Before Leaving the Site 2/1/2011 #36

37 Before Leaving the Site Clean grass and debris from top and inside of access riser. Clean the lid and gasket. 2/1/2011 #37

38 Before Leaving the Site Verify that valves are back to proper operating positions Place control panel switch back to automatic 2/1/2011 #38

39 Before Leaving the Site Make sure all lids are securely bolted At your first visit, it s helpful to take photos of the system layout for future reference 2/1/2011 #39

40 Before Leaving the Site If you have a laptop, enter your data before leaving the site 2/1/2011 #40

41 Back at the Office Dial into the telemetry panel Enter site visit notes Double-check system operation Complete paperwork Prepare reports, as necessary Schedule next O&M site visit 2/1/2011 #41

42 Troubleshooting Performance Sampling Locations Baseline Sampling Influent BOD, TSS, TKN, Ammonia, ph, Alk, etc. History - Send treatment results to Orenco! 2/1/2011 #42

43 Troubleshooting Performance Most problems are the result of: Hydraulic overloading Change is flows I&I Organic overloading Change in influent constituents Lack of maintenance Inadequate recirculation ratio Equipment malfunction Toxic event 2/1/2011 #43

44 Solutions for Decentralized Wastewater Treatment Orenco Systems, Inc. 2/1/2011 #44