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Highland Tank R-HT Series User Manual

Rectangular oil/water separators
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RECTANGULAR
OIL/WATER
SEPARATORS
User's Manual
Installation
Operation
Maintenance
Carefully read and follow the instructions in this
Unmatched Quality & Service
Aboveground
HT, HTC, UL-SU2215
Single-wall & Double-wall
Series G, J, S & TF
manual.
www.highlandtank.com • 1
Proudly made
in America

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Summary of Contents for Highland Tank R-HT Series

  • Page 1 RECTANGULAR OIL/WATER SEPARATORS Aboveground HT, HTC, UL-SU2215 Single-wall & Double-wall Series G, J, S & TF User’s Manual Installation Operation Maintenance Carefully read and follow the instructions in this manual. Unmatched Quality & Service Proudly made in America www.highlandtank.com • 1...
  • Page 2 Highland Tank disclaims all liability related to any misuse of the oil/water separator or failure to follow all guidance and instruction provided by Highland Tank.

  • Page 3: Table Of Contents

    OWS Reference Drawing Appendix - A - Sample Inspection and Maintenance Log Introduction Thank you for purchasing a Highland Tank Oil/Water Separator - the leading high-performance separator in the industry. The purpose of this manual is to provide detailed information on the installation, venting, startup, operation, maintenance and trouble-shooting of Highland Tank’s Oil/Water Separator.
  • Page 4 Important points to consider prior to installation, operation and maintenance of the OWS: Carefully read and follow instructions in this manual. Local codes and ordinances may apply. Check with local AHJ prior to installation of OWS. • Ensure adequate site space - many of our products are delivered on a 75 foot long tractor-trailer.
  • Page 5 Important points to consider continued: • IMPORTANT: DO NOT modify OWS structure in any way. DO NOT weld on OWS. • This is a stationary OWS. DO NOT use for transport of any product over roads and highways. • Wastewater containing high concentrations of dissolved solids (such as untreated sanitary sewage) must be excluded due to its emulsifying tendency.
  • Page 6 Standard OWS Highland Tank’s OWS is a wastewater treatment tank used to Description intercept and collect free-oil, raw petroleum hydrocarbons, grease and oily-coated solids from a wastewater stream. They are typically required in all facilities that conduct washing, servicing, repairing, maintenance or storage of motor vehicles,...
  • Page 7 Model R-HTC Rectangular Aboveground Oil/Water Separator with Optional Sludge Hopper and Level Sensor Aboveground installation Electronic oil level sensor Removable, top panels avoids costly excavation can signal remote alarm for easy access and panel of high oil condition maintenance High-performance wastewater treatment at varying flow rates and conditions...

  • Page 8: Installation

    Under no circumstance should chains or slings be used around the OWS shell. Always use four lifting lugs to lift OWS. Max. 30º Highland Tank ® www.highlandtank.com Installation & Maintenance Instructions are available at www.highlandtank.com Use spreader bar Max. 30º when necessary Highland Tank ®...
  • Page 9 Any damage that could result in leakage or corrosion must be repaired in a manner approved by Highland Tank. Please refer to coating repair instructions below. Damaged coatings must be repaired with the repair kit that was delivered with the OWS.
  • Page 10 Internal Inspection Carefully remove access covers so as not to damage the gaskets. Inspect the interior of the OWS from above (without entry) to ensure that all baffles, coalescer plates and cartridges and internal piping are secure and have not been damaged during transport. Do not allow anyone to enter the OWS unless it has been properly prepared for entry and the person entering the OWS has been properly trained for confined-space entry, if required, per OSHA, Regulations for...
  • Page 11 Single-Wall OWS Remove factory installed temporary plugs & thread protectors. Air Test Apply compatible, non-hardening pipe sealant to threads and install/ reinstall liquid-tight steel or cast-iron plugs at all unused openings taking care not to cross-thread or over-tighten plugs. All gaskets, lids and blind-flanges must be in place prior to performing air test.
  • Page 12 Pre-installation Tightness Testing Procedures continued Temporarily plug, cap or seal off remaining OWS openings to hold pressure. Close valve B and pressurize the OWS inner tank to a maximum of 2.5 PSIG. Seal the inner tank by closing valve A and disconnect the external air supply.
  • Page 13 OWS to the static fluid level. After one hour, verify that the fluid level has not dropped. A fluid level change would indicate that there may be a leak in the primary tank. If a leak is detected, contact Highland Tank before proceeding. www.highlandtank.com • 13...
  • Page 14 Anchor bolts are positioned in the concrete pad to match holes in the support flanges. The OWS is secured with washers and lock nuts. Other hold-down methods are available. Contact Highland Tank. Fig. 5 Highland Tank ®...

  • Page 15: Piping - Inlet, Outlet & Vent

    Fill oil/water separation chamber with clean, fresh water and allow to stabilize. Check for leaks between chambers. Contact Highland Tank if a leak is detected. Ballasting Ballasting may be necessary for additional downward force on the OWS during the final stages of installation.
  • Page 16 Piping continued OWS outlet piping must be designed to flow at a rate equal to or greater than the inlet piping to avoid any potential backup. IMPORTANT: The OWS should be fitted with properly sized inlet and outlet shut-off valves (contractor supplied) for emergency shut-down and service purposes.
  • Page 17 Apply supplied coating touch-up to all exposed steel surfaces of the OWS and allow to cure completely. Cure time will vary depending on temperature and conditions. Contact Highland Tank if additional touch-up coating is needed. Optional OWS Optional OWS electronics may have been provided for your project.
  • Page 18 Highland Tank offers a wide range of control panels and sensors to monitor the operation of your OWS. All panels include audible/ visual signals to alert the operator of system changes and system test buttons.
  • Page 19 Please consult the job specific project information should you need detailed information regarding a specific alarm/control panel. Contact Highland Tank if you still need assistance. HTAP-1 - 1-Channel HTAP-2 - 2-Channel High-Oil or Leak Detection...
  • Page 20 FUEL LEAK TEST WATER LEAK TEST ALARM TEST ALARM SILENCE Below is a listing of Highland Tank’s control panel features. Refer to the previous diagrams to help understand the function of your particular panel. Panel Light or Button Description / Function...
  • Page 21 FUEL LEAK Alerts operator of a leak from primary wall of OWS into interstice. RESPONSE: Contact Highland Tank for procedure. Fuel leak will cause only fuel leak alarm. WATER LEAK Alerts operator of a water leak from primary or secondary wall of OWS into interstice.
  • Page 22 Leak Detection Leak Detection Procedure for fuel or water in the OWS interstice. System Procedure (Optional) For easy and efficient monitoring of the interstitial space (the space Double-wall OWS ONLY between the inner and outer walls), the OWS may be equipped with a Liquid Leak Detection Sensor to activate warning alarms if the interstitial space becomes filled with hydrocarbons or water during operation.

  • Page 23: Start-Up

    OWS Start-Up The OWS must be full of water (as defined below) to operate. Separated liquid oil and vapors may be flammable IMPORTANT: and/or combustible. Service personnel must comply with all established OSHA CAUTION: regulations governing the facility and services. These include, but are not limited to, the use of approved breathing equipment, protective clothing, safety equipment and other requirements.
  • Page 24 Alarm should deactivate, and soon thereafter the High Oil Level Warning Alarm should deactivate. Note: If the alarms do not deactivate upon filling, remove the sensor and check for float binding or poor electrical connections. Contact Highland Tank @ 814-893-5701 should you need additional assistance. 24 • www.highlandtank.com...

  • Page 25: Operation

    Waste accumulates within the OWS while effluent is discharged by gravity. Highland Tank OWSs will not remove oils with a specific gravity greater than designed for, chemical or physical emulsions, dissolved hydrocarbons, solvents, or volatile organic compounds (VOC).
  • Page 26 Operation continued Wastewater flows from the OWS to a sanitary or storm sewer or is pumped to be recycled for reuse. Free-floating oil and greasy solids accumulate in the OWS until they are pumped out by the operators. Any and all oil recovered and removed from the OWS must be recycled or disposed of in accordance with federal, state and local regulations.

  • Page 27: Maintenance

    Maintenance Separated liquid oil and vapors may be flammable and/or combustible. CAUTION: Never enter an OWS or enclosed space, under any condition, without proper training and OSHA approved equipment. WARNING: See OSHA, Regulations for Permit-Required Confined Spaces 29 C.F.R. § 1910.146. All enclosed spaces must be properly vented prior to entry to avoid ignition of flammable materials or vapors.
  • Page 28 Maintenance OWS with oil level sensors require oil removal when the alarm is continued activated. Stop OWS operation, remove the oil and then refill OWS with clean fresh water (see Start-Up Instructions, page 23). OWS without oil level sensors require level checking by use of a sampling device or a gauge stick with water finding paste.
  • Page 29 Maintenance Inspect OWS after a heavy rainfall to check for signs of malfunction continued due to an excessive flow rate. If the OWS has been cleaned within the year and only bottom sludge has built up while the effluent water is contaminant free, it may be sufficient to vacuum the sludge from the sediment chamber and refill OWS with clean water.
  • Page 30 Mixed Oil and Water Using suction, remove oil and water, then lower suction hose to Removal Procedures remove all remaining contents from the OWS. Refill with clean water continued (see Start-up Instructions, page 20). Major Oil Spill A major oil spill is a spill that exceeds the normal oil storage Response Procedures capacity of the OWS.
  • Page 31 Sludge Removal Determine exactly where the sludge/water interface is located using Procedures a sampling device or a gauge stick. Open the 3 inch diameter Clean Out opening or remove the Sediment Chamber Access Cover. If used, insert gauge stick into the OWS through the 3 inch diameter Clean Out opening or directly into chamber.
  • Page 32 Sludge Removal Some OWS units are equipped with an integral Sludge Hopper Procedures for OWS located directly below the OWS inlet and in front of the plate with Sludge Hopper coalescer. The sludge hopper allows for collection and removal of heavy solids that may enter the OWS during normal flow conditions.
  • Page 33 General OWS Using suction, remove the resultant slurry. Cleaning Procedures If not properly maintained, the OWS may malfunction. NOTE: Over a period of time, sediment, oil and grease will build up on the sides and bottom of the OWS. Dirt and heavy oil may also build up on the Corella coalescer, reducing the unit’s efficiency.
  • Page 34 Using suction, remove the slurry from all chambers. Visually inspect the OWS interior and components for any damage. NOTE: If any visual damage exists, contact Highland Tank for further instructions. 34 • www.highlandtank.com...
  • Page 35 Let coalescer packs stand to allow water to drain out as needed. Visually inspect the OWS interior and components for any damage. NOTE: If any visual damage exists, contact Highland Tank for further instructions. Reinstall the coalescer packs, restoring them to their original locations.
  • Page 36 Special Model Depending on your specific model R-OWS, your OWS may have one Maintenance or more extra chambers for: Series G, J, S & TF Series G - Sand and grit collection on inlet end of OWS Series J - Effluent Pump-out on outlet end of OWS Series S - Side Oil Compartment on one side of OWS Series TF - Trickle Filtration on outlet end of OWS Please see special instructions below for regular maintenance of OWS...
  • Page 37 Special Model Media Replacement Cycle - The Trickle Filter media does require Maintenance continued monitoring to determine the need for media bag change-out. Media Series TF replacement should be carried out as needed, but at a maximum recommended period of every 18 months. Monitoring Possible scenarios that will require attention to the media.

  • Page 38: Troubleshooting Guide

    Troubleshooting Problems which occur during OWS operation can be the result of Guide many factors. The following list identifies the most common problems, their possible causes, and suggested remedies. Problem Possible Cause Remedy Excessive oil concentration Wastewater pumped into the OWS Adjust pump, change in OWS effluent water causing emulsification of oil droplets...
  • Page 39 Clean out OWS. content in clean water effluent Excessive solids in storm water Install Highland drainage area Collection Catch Basin in front of OWS and clean OWS. If you have any additional questions regarding OWS problems, contact Highland Tank. www.highlandtank.com • 39...
  • Page 40 40 • www.highlandtank.com...
  • Page 43 33'-6" x 10'-0" x 10'-0" 18" 30,000 3,000 30,000 6,000 40'-10" x 10'-0" x 10'-0" 20" Plate spacing and orientation may vary depending on site conditions. Custom sizing is available. Consult Highland Tank for Series G, J, S & TF sizing information.
  • Page 44 F: 717-664-0617 F: 717-664-0631 Watervliet, NY Friedens, PA 958 19th Street 1510 Stoystown Road Watervliet, NY 12189-1752 Friedens, PA 15541-7402 T: 518-273-0801 T: 814-443-6800 F: 518-273-1365 F: 814-444-8662 Please visit us at www.highlandtank.com. www.highlandtank.com wastewater@highlandtank.com © Highland Tank HT-2052 – 4/2016...
  • Page 45 Installation Start-up Checklist This form is intended to document all of the important information regarding the installation and start-up of your Highland Tank Oil/Water Separator (OWS). For accuracy, to ensure proper installation, and keep any warranty in force, this important document should be completed at the time of start-up. A copy of this document should be maintained at the OWS installation site, maintenance office and owner’s office.
  • Page 46 Prior to performing any maintenance, stop all flow to the OWS. Then, using suction, remove all fluid and solids from the OWS and dispose of properly. Perform maintenance according to Highland Tank Aboveground Rectangular User’s Manual available at www.highlandtank.com/AdminHighlandData/FileDataAdditional/resource_105.pdf.
  • Page 47 Aboveground Rectangular Oil/Water Separator Installation Start-up Checklist PLEASE PRINT Owner of OWS: Installation Date: Location of OWS: Model / Size: Start-up Date: Sold to Start-up Attendees (Please print) Customer: Address: City: State: Zip: Phone: ( Contact: Installation Site Customer: Address: City: State: Zip:...
  • Page 48 Has the OWS been filled with clean fresh water prior to being put into service? Yes No Has the operation of the OWS detailed in the Highland Tank Aboveground Rectangular Oil/Water Separator User’s Manual been explained to appropriate personnel? Yes No www.highlandtank.com/AdminHighlandData/FileDataAdditional/resource_105.pdf.
  • Page 49 Aboveground Rectangular Oil/Water Separator Installation Start-up Checklist Circle One Yes No N/A Hold Down Method (if required): Oil Skimmer Yes No Is the OWS equipped with an oil-skimming device? Skimmer Type: Model # Has skimmer been installed in accordance with manufacturer’s Yes No N/A instructions? Has it been tested and is it working properly?
  • Page 50 Will Highland Tank personnel be required to perform the test? Testing date requested: Maintenance Does the customer have a copy of Highland Tank Aboveground Rectangular Oil/Water Separator Userʼs Manual? Have the installation, operation and maintenance instructions been discussed with the customer?
  • Page 51 Aboveground Rectangular Oil/Water Separator Installation Start-up Checklist Differences noted (Missing or incorrect items): Follow-up required: Corrective action: Start-up date: Notes: Local Highland Representative: Phone: ( Email: HT-9060 – 6/2016 IMPORTANT: Separator is to be filled with clean/fresh water prior to being put into service. HT-9060 –...

This manual is also suitable for:

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