Tank

WASTEWATER TREATMENT SYSTEM
TANK PUMPING INSTRUCTIONS
These instructions provide a general guideline concerning when and how to pump out the Singulair system. This literaturesupplements other instructional materials included in the Singulair Bio-Kinetic System Service Manual.
In order to maximize performance, protect system components and insure protection of the surrounding environment, theSingulair system should be thoroughly checked every six months by a factory-trained Norweco service technician. Aninitial service program that provides a minimum of four service inspections during the first two years of system operationis included in the system purchase price. Renewable service contracts to extend these routine inspections after the initialprogram expires are available from the local licensed Norweco distributor.
The pretreatment chamber of the Singulair system will periodically require pumping. Because the Singulair system is abiological treatment device, the time frames listed within these instructions are estimates. Actual pumping frequency willdepend on the amount and strength of the wastewater being treated.
Handling and disposal of pretreatment chamber contents, referred to as septage, or the contents of the aeration andclarification chambers, referred to as biosolids, are regulated by local, state and federal authorities. Disposal options mayinclude land application, lagoon treatment, municipal wastewater treatment or landfill disposal. Prior to arranging for tankpumping, contact the Norweco distributor to obtain complete information on access to chambers, removing equipment,coordination of services and disposal of tank contents.
During Singulair system installation and backfilling, do not allow dirt or mud to enter the system. Once in the system, dirtor mud will form a heavy sludge which will affect settling characteristics, interfere with filtration and degrade effluent quality.
If dirt or mud enters the system, it must be removed to insure proper system operation. Removing the dirt or mud mayrequire repeated flushing and tank pumping. For additional details refer to Singulair Tank Delivery and Setting instructions.
INTRODUCTION
WHEN TO PUMP
The Singulair system is a biological treatment device and Norweco distributors provide maintenance and service should not require pumping as frequently as a septic tank.
inspections free of charge at regular six month intervals Septic tanks are designed to store solids and perform during the initial warranty period. These routine service limited biological treatment. Frequent pumping of a inspections will determine if a pretreatment chamber septic tank is mandatory to remove and dispose of these evaluation is necessary. The pretreatment chamber solids before they discharge from the tank. The Singulair should be evaluated by a factory-trained technician at system is designed to biologically treat all incoming least every three years to determine if pumping is wastewater and return only a high quality effluent to the required. Pumping of this chamber by a licensed tank environment. The multiple operating processes contained pumping and disposal service will likely be necessary at within the plant accomplish primary, secondary and 3 to 5 year intervals, based on variations in system tertiary treatment in each Singulair system. The pretreatment chamber of the Singulair system is designedto retain non-biodegradable solids and allow ROUTINE SERVICE INSPECTIONS
biodegradable solids to flow into the aeration chamber.
The aerobic treatment process in the Singulair system Semi-annual service inspection procedures are outlined utilizes these biodegradable solids to convert the in detail in the Singulair Bio-Kinetic System Service wastewater into carbon dioxide and water. This natural Manual. These routine service procedures include biological process minimizes the accumulation of solids inspection of the aeration chamber, clarification chamber and eliminates the need to pump the system as frequently and effluent line to determine if the pretreatment chamber as a septic tank. Because the Singulair system utilizes should be evaluated. A brief outline of these routine the biodegradable material found in wastewater to perform service procedures, as well as the detailed steps required biological treatment, pumping the system more often than to perform a comprehensive pretreatment chamber needed will not improve operational performance.
evaluation, are listed here. The results of the routine Removal of the solids in the Singulair system will be service inspection, pretreatment chamber evaluation and required when indicated by an inspection or evaluation tank pumping (when performed) should be noted on the AERATION CHAMBER INSPECTION
SETTLEABLE SOLIDS TEST
A summary of the aeration chamber inspection procedure A settleable solids test should be conducted as part of the is listed below. For complete details on aeration chamber aeration chamber evaluation during each routine service service, refer to the Singulair Service Manual. inspection to monitor system performance.
CAUTION: Any time an aerator or service pump is
To insure a well mixed sample is collected for the settleable connected or disconnected, first shut off the selector
solids test, make sure the aerator has been running for at switch in each Singulair control center. Failure to do
least 10 minutes. Collect the sample immediately after so could result in personal injury or equipment damage.
turning off and removing the aerator and before the aerationchamber contents begin to settle. Using a graduated cone 1. Remove the vented concrete aeration chamber access or other clear container, dip the container into the aeration chamber to a depth of 21/2 feet. Set the container on a levelsurface and allow the solids to “settle” for 30 minutes while 2. Unplug the aerator and secure the closure cap in you complete the service inspection. Do not disturb the position to protect the electrical connector.
3. Lift the aerator straight up out of the access opening After 30 minutes, read the level of solids and compare it and lay it flat on the vented cover. DO NOT bump the with the total liquid volume in the container. Calculate the 50%). If the settled materialcontains large pockets of clear NOTE: The solids should settle
with no clear separation. Thisshould not be interpreted as having A settled solids level greater than 75% indicates excessive 6. Clean any debris from the aspirator shaft and flush the solids in the aeration chamber and that the pretreatment chamber may need to be pumped. In this case, apretreatment chamber evaluation must be performed. Refer 7. Visually check the aeration chamber surface for the to the “Pretreatment Chamber Evaluation” section of these presence of grease or oil. An accumulation of these instructions for more details. If the pretreatment chamber materials indicates the pretreatment chamber should evaluation indicates pumping is not required, the aerator operating cycle should be increased. Consult the localregulatory agency and the Singulair Time Clock Setting 8. Check the aeration chamber contents for the presence instructions before adjusting the aerator operating cycle.
of non-biodegradable materials, paper, mop fibers,hair, grease or oil. A significant accumulation of these In Singulair systems with more than one aerator, the materials in the aeration chamber indicates the settleable solids test should be conducted for each aeration pretreatment chamber should be evaluated.
chamber. The results of all tests should be averaged todetermine the appropriate action. If test results indicate an Repeat steps 1-8 for Singulair systems with multiple aerator time cycle adjustment is necessary, adjust each time clock to operate on identical run cycles.
NOTE: Do not replace the aerator(s) until the Bio-Kinetic
The results of the settleable solids test, and any system(s) have been removed from the clarification adjustment made to the system time cycle, should be recorded on the Service Inspection Card.
CLARIFICATION CHAMBER INSPECTION
EFFLUENT LINE INSPECTION
A summary of the clarification chamber and Bio-Kinetic Check the groundwater relief point installed in the effluent service inspection procedure is listed below. For complete line to make sure it is free of obstruction. An details on clarification chamber service, refer to the accumulation of paper, fibers, hair or grease indicates that Singulair Bio-Kinetic System Service Manual. the Singulair system needs to be pumped. If there is asurface discharge point, make sure that it is free of debris, Remove the system access cover and set aside.
foam, mud, etc. Make appropriate notations on theService Inspection Card.
Remove the optional Blue Crystal and Bio-Neutralizerfeed tubes. Do not allow the tubes to touch.
PRETREATMENT CHAMBER EVALUATION
Install the Outlet Sealing Tool into the receiving flange The pretreatment chamber must be evaluated within three to prevent loss of liquid from the Singulair system during years of system start-up or the most recent tank pumping.
An evaluation must also take place any time a routineservice inspection indicates the chamber may be Remove the Singulair aerator and place the service funnel discharging excessive solids. This evaluation includes measuring the depth of the floating scum and settledsludge layers to determine if pumping is required. If the Using the universal tool, remove the flow deck and pretreatment chamber evaluation indicates the chamber chamber plate assembly from the Bio-Kinetic system.
does not require pumping, these evaluations should be Place the assembly on the service funnel for cleaning.
repeated annually until pumping is necessary.
Using the universal tool, disengage all four black locking PRETREATMENT CHAMBER INSPECTION
lugs to allow for removal of the outer chamber.
A complete pretreatment chamber inspection procedure Lower the fixed handle of the universal tool into the upper is listed below. The results of the inspection should be lip of the Bio-Kinetic system outer chamber . Turn the noted on the Service Inspection Card. handle until the lifting tool is engaged into the lifting rib.
1. If the pretreatment chamber access opening is not The outer chamber is equipped with a drain valve and fill equipped with a riser and cover at grade, dig down to valve to allow for easy removal and reinstallation during the access opening in the top of the tank. The opening service. Begin lifting the outer chamber from the tank.
is in line with the access opening for the aeration The drain valve will automatically open as the outer chamber and the system outlet. The access cover chamber is lifted out of the clarification chamber.
should not be more than 12" below grade.
Remove the outer chamber from the mounting castingand set it on the upside down lid of the service container.
2. Remove the cover(s) and be careful not to allow dirt or NOTE: Repeat steps 1-8 for clarification chambers with
multiple Bio-Kinetic systems.
3. Visually examine the surface of the pretreatment chamber for a significant accumulation of grease, oil or Reinstall the Singulair aerator(s) as outlined in the Singulair Aerator Service Instructions. The aerator(s)must be in operation while the remaining clarification 4. Using the hopper scraping tool, gently probe the surface of the chamber to determine the thickness ofthe scum mat. Force the tool down through the scum 10. Check the surface of the clarification chamber for mat, rotate the tool one quarter turn, then raise it until the presence of grease or biologically untreatable the bottom of the mat is felt. If the depth of the floating material. A significant accumulation of these scum layer has reached the bottom of the discharge materials would indicate that the pretreatment 5. To check the depth of the settled sludge layer, secure 11. With the aerator running, use the hopper scraping tool a rough white towel to the handle of the hopper to gently scrape all areas of the clarification chamber scraping tool and lower it to the bottom of the chamber.
Lower the tool behind the discharge tee (baffle) to avoid 12. Complete the clarification chamber service as floating particles. Push the tool through the settled sludge outlined in the “Clarification Chamber” section of the layer to the bottom of the tank. Wait several minutes and Singulair Bio-Kinetic System Service Manual.
carefully remove the tool. The depth of the settled sludgelayer will be shown by a dark line on the towel. If the 13. Make appropriate notations on the Singulair Service settled sludge layer has accumulated to the bottom of the Inspection Card and on the Owner’s Manual.
discharge tee, the chamber should be pumped.
Review the “Operational Requirements” section of the 2. Refer to the “System Capacity” table and advise the Owner’s Manual with the owner. If lint, grease, scouring pumping service what volume of liquid is to be pads, diapers, sanitary napkins, cotton balls, cotton swabs, cleaning rags, dental floss, strings, cigarette filters,rubber or plastic products, paints, thinning agents or other 3. For pumping the pretreatment chamber only, remove harsh chemicals are discovered in the system, the owner the pretreatment chamber access cover and insert a should be cautioned regarding proper use of the system.
suction hose into the chamber. Lower the hose until itcontacts the bottom of the tank. Withdraw the hose WHAT TO PUMP
approximately 2" and connect the opposite end to thepump being used to evacuate the chamber.
When pumping is required, normally it is necessary topump only the pretreatment chamber if the Singulair 4. Break up the scum mat to facilitate pumping. Activate system has been serviced at regular 6-month intervals. If the pump and remove the pretreatment chamber service has been interrupted for an extended period of contents. It is not necessary to wash down the time, or if mud or toxic material is present, it may be necessary to pump out the entire system. When pumping,it is not necessary to wash down the compartments unless 5. If the solids in the chamber are so concentrated that significant quantities of grease, hair, fibers, mud, toxic the suction hose cannot withdraw them, tank contents substances or biologically untreatable materials are may be back-flushed to break up the solid matter.
present. The following chart provides volumetriccapacities within each Singulair system: 6. If special circumstances require the total system to be pumped, contact the local Norweco Singulairdistributor. Each aerator and Bio-Kinetic system must be removed for full access to all chambers and toprevent damage to components.
NOTE: Access to the contents of the aeration and
clarification chambers of Singulair systems should be
made only through an aerator mounting casting. Neverinsert the hose through the Bio-Kinetic system 7. A Singulair system that has been inactive for an extended period of time or that has accumulated mud or dirt during installation may have to be washed downwith fresh water and pumped out. This process may have to be repeated for proper system operation.
HOW TO PUMP THE SINGULAIR SYSTEM
8. After pumping, fill all chambers to capacity with water.
Return all aerators, Bio-Kinetic systems and access A complete Singulair system pumping procedure is listed covers to their proper locations, as outlined in the below. Prior to tank pumping, contact the Norweco Singulair Service Manual. Be sure each control center distributor to obtain complete information on equipment selector switch is in the “automatic” position, and each enclosure is secured with a tamper evident seal.
1. If any portion of the Singulair system requires pumping, Following tank pumping, no other system adjustments are contact a tank pumping service licensed by the local necessary for proper biological treatment to continue. regulatory agency. The septage or biosolids from the Semi-annual service inspections by a factory-trained system must be removed and disposed of in a manner Norweco service technician should be conducted to insure consistent with federal, state and local regulations.
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