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Troubleshooting
Related Manuals for BIO-MICROBICS SeptiTech STAAR 1.2
Summary of Contents for BIO-MICROBICS SeptiTech STAAR 1.2
- Page 1 Operation and Maintenance Manual SeptiTech Wastewater Pretreatment System Commercial Processor Units STAAR 1.2 / STAAR 1.5 / STAAR 3.0 / STAAR 4.5 Updated: 9-8-14 SeptiTech, 69 Holland Street, Lewiston, Maine 04240 P: 207-333-6940 / F: 207-333-6944 / www.septitech.com / info@septitech.com...
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Page 2: Table Of Contents
Table of Contents INTRODUCTION ..............................4 TREATMENT SYSTEM DESIGN AND OPERATING THEORY ..............4 TREATMENT LOOP DESCRIPTION ......................5 3.1........................... 5 ECIRCULATION 3.2. ) ..................6 ENITE PTIONAL ONFIGURATION 3.3............................7 ISCHARGE SLUDGE RETURN LOOP ..........................8 ALARM CONTROL LOOP ..........................8 SYSTEM COMPONENTS .......................... - Page 3 List of Tables Table 1: SeptiTech Processor Treatment Capacities ................4 Table 2: SeptiTech Concrete Tank Information ..................9 Table 3: SeptiTech Standard Pumps ...................... 12 Table 4: Alarm Descriptions and Troubleshooting ................13 Table 5: SeptiTech Systems Maintenance Schedule ................21 List of Figures Figure 1: SeptiTech Denitrification Process Description ..............
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Page 4: Introduction
1. Introduction This document describes the operation process and maintenance procedures used to control and maintain operation of the SeptiTech Wastewater Pretreatment System. The SeptiTech pretreatment unit is comprised of a concrete tank, pumps, media, and required process piping. Each processor is controlled by a programmable logic controller (PLC), which can control the processor automatically or manually through the use of an operator interface terminal (OIT). -
Page 5: Treatment Loop Description
Biological loading (Biochemical Oxygen demand (BOD), mg/L) Nutrient removal (if required) Initially, raw wastewater passes through a baffled septic tank, sized according to local state codes, where a portion of the solids and grease are separated out. Wastewater flows (typically via gravity) from the septic tank into the reservoir of the processing tank beneath the trickling filter. -
Page 6: Denite Mix Loop (Optional Configuration)
Oxygen is supplied to the processor through venturis installed within the recirculation pump discharge header prior to the nozzles. The nozzle of the venturi causes the velocity of the water to increase, thus causing a decrease in pressure. This pressure drop draws air in the system through an outside air supply pipe. -
Page 7: Discharge Loop
The increased residence time provides sufficient time for any dissolved oxygen within the recycled wastewater to be consumed, thus creating a true anaerobic environment. It also allows time for the natural processes of denitrification to occur. Figure 1 summarizes the nitrogen removal processes in schematic form. Nitrate Rich Recycle Nitrogen Septic Tank... -
Page 8: Sludge Return Loop
The discharge pumps are operated based on a timed program. The default program is to have the discharge pump run once every hour throughout the day for a set amount of time in order to meet the daily flow. Both the pump activation cycle and pump run time can be adjusted from the OIT panel or from off site at the SeptiTech facility. -
Page 9: System Components
remain lit until the fault causing the alarm is cleared (i.e., the problem is fixed). If an alarm has been silenced but the fault has not been cleared after 24 hours, the local alarm will again sound. Note that this twenty-four hour silencing does not prevent the local alarm from sounding again during that period in response to any different fault conditions. -
Page 10: Disinfection (Optional)
every cubic foot of media, there is 30 square feet of surface area, providing the surface area needed for the attachment of biological growth. Figure 2: SeptiTech Plastic Media Picture courtesy of www.jaeger.com The polystyrene hydrophobic bead filter media occupies the upper portion of the treatment unit. Due to the hydrophobic nature of the media, microbes present in the wastewater do not strongly attach to the media, but are rather entrained within the wastewater as it flows through the media. -
Page 11: Pumps
Figure 4: Sanitron Ultraviolet Water Purifier Picture courtesy of www.ultraviolet.com Figure 5: Emperor Aquatics (Smart HO UV Sterilizer) Picture courtesy of www.emperoraquatics.com 6.5. Pumps The pump of choice that SeptiTech uses within the commercial processors is the Tsurumi Pump VANCS series of fully submersible pumps. The pumps are constructed of stainless steel and fiberglass reinforced plastics (FRP) making them highly resistant to corrosion. -
Page 12: Table 3: Septitech Standard Pumps
Tsurumi, Inc. (www.tsurumiamerica.com): VANCS series of pumps Figure 6: Tsurumi VANCS Series Submersible Pump (Typical) The various processes in which the pumps are used are as described below: Recirculation – The recirculation of the wastewater from the reservoir portion of ... -
Page 13: Float Switches
(2)50PN2.75S STAAR 4.5 In addition to the above standard discharge pumps, other models with various pumping capabilities are available that can be used on a case-by-case basis in order to meet pumping requirements depending on the project. Pumps are available in Single Phase 120/230 volt and Three Phase 208/230 volt arrangements. -
Page 14: Troubleshooting Guide: Frequently Asked Questions/Problems
Alarm Description Problem Solution Reset Breaker - if 1. Circuit Breaker tripped continues Replace Pump 2. Failed neutral connection Check connections Check voltage out of 3. Relay failed Relay, check Relay Pins Recirculation Pump told 4. Failed Current Sensor Replace Current Sensor Recirculation Alarm to run but no feedback 5. - Page 15 Be wary of natural downdrafts conditions. Septic odor can often be traced to poor vent pipe positioning and downdraft air currents. Make sure the customer locates the precise position of odor if possible. We have had some cases where odor has arisen from sources not associated with the system such as old buried septic tanks.
- Page 16 system use as well as quality of power (i.e. our pumps generally do not like “dirty power”) can affect pump lifespan. In general, our pumpback and discharge pumps operate less than recirculation pump(s) during normal system operation and should last many years. Our recirculation pump(s) under normal use should last 3-5 years or longer.
- Page 17 grinders (garbage disposals) can result in heavy and inconsistent load of organic materials into the system and are therefore not recommended. Discharges from Potable Water Treatment Systems: Discharges from water treatment systems, such as water softeners or water filtration systems that require back flushing, are not considered wastewater and should never be pumped into a septic system.
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Page 18: O&M Agreements / Checklist / Maintenance Schedule
8. O&M Agreements / Checklists / Maintenance Schedule Many states, such as the State of Rhode Island, require an advanced treatment system owner to enter into an O&M agreement with a certified maintenance provider. The following is an example of a typical SeptiTech O&M Agreement between a customer and a SeptiTech authorized provider. - Page 19 5. If applicable, monitor system remotely through telemetry module and notify owner of any corrective action required for alarms. 6. If UV filter is present, Inspect/Clean UV basin and components. Owner must provide operator with means of disconnect to power off the unit for inspection. Bulb to be replaced every two years unless failure occurs before that time.
- Page 20 Acknowledgment of Understanding Owner Responsibility to Maintain/Convey SeptiTech Service Contract(s) I/we, as owners of a SeptiTech Treatment System, understand that I/we have purchased from Septi Tech, Inc. Dealer or Dealer's agent an onsite wastewater treatment system that uses proprietary advanced wastewater treatment technology. I/we agree to purchase and maintain a Service Contract for this system from our Echo-tech Supply, Inc.
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Page 21: Maintenance Schedule
9. Maintenance Schedule The SeptiTech system is virtually a maintenance free system for the system owner. During annual inspections provided by a SeptiTech certified service provider, there are numerous system components and general system checks that are to be performed. Table 1 below provides a schedule for the maintenance of the SeptiTech system. - Page 22 draw out of pump breaker and relay. (Normal operating range: 2.4-2.8A) 3. Annually 3. Check for any debris inside of recirculation pump support basket 4. Visually inspect recirc pump assembly 4. Annually for any signs of wear 1. Check that pump is operating by 1.
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Page 23: Residual Removal
have fallen through the rack 4. Annually 4. Visually inspect amount of biological growth and color of the bags 1. Visually inspect intake snorkel for 1. Annually signs of damage, broken pipe, insect nests, debris clogging intake 2. Annually 2. Place hand on end of intake snorkel and feel that air is flowing in while Air Intake Snorkel recirculation pump is operating... -
Page 24: Visual Evaluation Techniques
strength of the wastewater discharge and can range from between one and five years, with the average being every two or three years. If you have a garbage grinder (not recommended, as noted in Owner Care & Maintenance instructions), more frequent sludge pump out will be necessary. -
Page 25: Figure 8: Typical Spray Nozzle Spray Pattern
1. Place the processor into “maintenance” mode and manually activate the recirculation pump. 2. View the spray pattern of the individual spray nozzles that can be seen through the processor access ports (both inlet and outlet ports). 3. The spray nozzles should have a uniform “fanned out” pattern (as shown in Figure 8) and cover the media bag surfaces in a well-distributed manner. -
Page 26: Figure 9: Discharge Pump Assembly
2. Inspect the discharge pump while it is running and look to see that there is a strong and steady stream of water coming from the weep hole (anti-siphon hole) near the top of the discharge pump pipe assembly. Weep Hole Water Stream Discharge Pump Figure 9: Discharge Pump Assembly... -
Page 27: Figure 10: Processor Inlet Pipe
2. Inspect the solids pump-back pump while it is running and look to see that there is a strong and steady stream of water coming from the weep hole (anti- siphon hole) near the top of the pump-back pump pipe assembly. a. -
Page 28: Figure 11: Mechanical Floats
Mechanical Float Figure 11: Mechanical Floats - 28 -... -
Page 29: Evaluation Of Effluent & Mixed Liquor
10 Evaluation of Effluent & Mixed Liquor Onsite determination of system treatment performance may be accomplished by viewing the system internally, inspecting the effluent that is being pumped out and smelling the system. 10.1 Visual Evaluation The system is running correctly as long as the following visual signs are present: 1. -
Page 30: Olfactory Evaluation
Septic Tank Effluent SeptiTech Effluent Figure 13: SeptiTech Effluent Example 10.2 Olfactory Evaluation The SeptiTech system should have a non-offensive rich earthy odor, typical to that of a municipal aeration treatment plant. The processor at no time should smell similar to that of the septic tank, that is, a septic smell. -
Page 31: Sampling Protocol
11 Sampling Protocol Some states or regions require effluent sampling on a prescribed frequency. SeptiTech’s sampling protocol is provided as follows: 11.1 Non-UV Systems Sample will be taken using a gravity-filled sampling bottle to collect a grab sample directly from the effluent wet well directly under the discharge side access port. -
Page 32: Uv Systems
11.1.3 Documentation Fill out the chain of custody sheet with all pertinent collection data and list all analyses to be performed in the appropriate columns on the form. Deliver to the lab within the specified holding times and sign per protocol of laboratory sample custodian. - Page 33 Cut new section of Tygon tubing. Install ball valve and Tygon tubing in discharge pressure port. Using the auto-handoff switch located on the inside front panel of the PLC panel, turn on pump and open valve to allow water to run for 60-seconds. Then open sample collection container, put Tygon tubing into sample collection container, fill container and immediately cap container and place in cooler with ice.
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Page 35: Septitech Warranty Agreement
12 SeptiTech Warranty Agreement Period of Coverage SeptiTech warrants each treatment unit sold to be free of defects in material, workmanship and performance for a period of two years from date of delivery. Obligations of SeptiTech SeptiTech at their sole expense will service and repair the installed unit including all parts and labor that show evidence of defect or unacceptable performance for any reason when operated within design parameters, provided that all financial obligations of the owner/purchaser are in compliance with the Purchase &...
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