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eloy water Oxyfix C-90 User Manual

Waste water treatment unit
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Oxyfix® C-90 (1 to 99 PE)

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  • Page 1 – User Manual – WW Models Oxyfix® C-90 (1 to 99 PE)
  • Page 2 We thank you for the confidence that you have placed in us and in the Oxyfix® C-90 unit designed by Eloy Water. These Oxyfix® C-90 units are manufactured at our plant and workshops from specially formulated concretes offering a lighter, stronger and a more watertight unit than any other product available on the market.
  • Page 3 Eloy Water s.a. , 13 rue des Spinettes – 4140 Sprimont (Belgique) EN 12566-3+A1+A2 :2013 Packaged domestic wastewater treatment plant for treatment of domestic wastewater - Product’s reference code : Oxyfix® C-90 - Material : Concrete Oxyfix C- Oxyfix C-9038...
  • Page 4 Safety guidelines We strongly recommend that any service or repair action be solely undertaken - other than for those actions that we refer to as "appropriate monitoring" in our maintenance contracts - by our Company's Field Service Technicians. Risk Prevention All personnel servicing the treatment plant shall wear appropriate PPE.
  • Page 5 ➢ Mechanical Hazards It is recommended to use great care near electromechanical devices, some of which operate on an automatic cycle (where pumping stations are used). Manholes, manhole covers, and gratings shall only be kept open long enough to complete the service or repair action.

  • Page 6: Table Of Contents

    Table of contents User Manual ................1 Eloy Water ......................1 Foreword ....................... 1 Background ....................1 Preamble ..................1 User Manual ..................2 Design guidelines ..................2 General Description of your Oxyfix® C-90 unit ..........3 Operating Principles ..................3 The various components of your Oxyfix®...
  • Page 7 Oxyfix® C-90 28-38 to 76-99 PE ..........34 Blower connection to Oxyfix C-90® ............. 35 Diaphragm blowers (Oxyfix® C-90 1-4 to 21-27 PE) ....36 Side channel blowers (Oxyfix C-90® 38 to 99 PE) ....... 36 Electrical connection ................... 37 Connecting diaphragm blower ............37 Connecting side chanel blower and its temperature sensor ..
  • Page 8 Commissioning ....................44 Inspecting the Oxyfix® C-90 ................44 FAQs ......................44...

  • Page 9: User Manual

    I. User Manual Submerged Aerobic Fixed Film Biomass Growth Oxyfix® C-90 Range (1 to 99 PE)

  • Page 10: Eloy Water

    It is part of the Eloy Water Group of Companies established in 1965 which specialises in environmental protection and management activities. The Eloy Group of Companies today employs more than 300 people for an annual turnover exceeding 50 million euros.

  • Page 11: User Manual

    80 and 110 litres, hence the capacity of your Oxyfix® C-90 unit to accept sudden load variations. Eloy Water will need to be informed in advance of any changes made to your private dwelling in terms of accommodations and facilities (adding new rooms or washing facilities, increase in the number of people using the premises, etc.).

  • Page 12: General Description Of Your Oxyfix® C-90 Unit

    2. General Description of your Oxyfix® C-90 unit The Oxyfix® unit is a biological sewage treatment plant, which uses a submerged aerated fixed- film (SAFF) technology. The water is treated by a population of bacteria fixed to an unalterable plastic media, or Oxybee ®. The Oxybee's high surface area (200m2/m3) provides for optimum biomass growth without any risk of clogging (90% of voids).

  • Page 13: The Various Components Of Your Oxyfix® C-90 Unit

    The oxygen required for bacterial growth is supplied by a blower. This air blower is connected to an air distribution piping system. This air distribution system is fitted at the bottom of the biological reactor with "fine bubble" air diffusers. The distinctive feature of this system lies in the fact that the micro-organisms in the biological reactor proliferate and attach themselves to a unique type of submerged media: the Oxybee®.
  • Page 14 Two tank unit (Oxyfix® C-90 (7 to 21-27 EP) Fig-4: Pictorial diagram of the Oxyfix® C-90 Two Tank Unit Details : A : Primary decanter H : Primary decanter manhole opening B : Biological reactor I : Biological reactor manhole C : Clarifier J : Clarifier manhole opening D : Media...

  • Page 15: Quality Components

    Quality Components Eloy Water systematically selects quality materials that have a minimum risk of deterioration and that can ensure the sustainable and efficient operation of your Oxyfix® C-90. Concrete tanks General Remarks The tank is precast using a self-compacting concrete. This high-density concrete provides a denser and a more impermeable finished product and also provides a high-resistance to sulphates that are present in the wastewater.

  • Page 16: Oxyfix® C-90 (28-38 To 76-99 Ep)

    Oxyfix® C-90 (28-38 to 76-99 EP) The blower is installed in a utility chamber. This unit chamber must be free of moisture, ventilated and easily accessible. The installation is completed with a polystyrene thermoplastic cabinet, fitted with two thermal magnetic circuit breakers, fuses (protection and timers), with two indicator lights (led), and a PLC complete with a LCD screen.

  • Page 17: Performances

    Performances Eloy Water guarantees that, provided that the installation is carried out according to the User Manual and that the unit is used in compliance with the instructions given in the User Manual, the Oxyfix® C-90 complies with the standards in effect at the time of the installation of the unit and this immediately upon achieving its designed capacity, which normally shall take 3 to 4 weeks.

  • Page 18: Use And Maintenance Of The Oxyfix® C-90 Unit

    We invite you to return the completed document. You may also register your product on line at www. eloywater.com. Eloy Water or Eloy Water certified operator will then send you a Service Agreement.

  • Page 19: A Service Agreement Will Guarantee That Your Unit Is Properly Maintained

    Eloy Water or its approved operators will systematically propose a service contract to owner’s of a new unit refer to section 6, appendix 1). In doing so, , Eloy Water can keep on file (updated in real time) a record of all the Oxyfix® C-90 sold and installed.. This file contains all the useful data needed to monitor each unit..

  • Page 20: Emptying The Sludge

    Service Contract that is most suitable to your needs. Should you decide not to enter into a Service Agreement with Eloy Water or with an Approved Operator, it will be necessary in order for you to enjoy the performance guarantee, to carry out a yearly service on your Oxyfix®...

  • Page 21: Sampling The Treated Water

    The operator shall keep a minimum distance of 3 meters between the sewer cleaning truck and the centre of the manhole. Only the primary decanter will need to be emptied. If required and at the request of a qualified technician, the other compartments may also have to be emptied. Please follow the following procedure when emptying the tank: 1.

  • Page 22: Procedure In Case Of Malfunction

    Indeed, a unit which has not been installed in accordance with the instructions specified by Eloy Water is likely to malfunctions both mechanically and hydraulically. Other malfunctions may also occur where the operating instructions are not complied with, for example: •...

  • Page 23: Fine Bubble Air Diffusers

    These diaphragms are readily available in stock from our factory or from your distributor. Fine bubble air diffusers The Oxyfix C-90 are fitted with, "fine bubble" air diffusers (micro perforated membrane) that ensures a total oxygenation of the waste water.

  • Page 24: A Few Tips

    - Our servicemen in the field have recorded that, despite our advice and recommendations to the contrary, some owners unplug the blower of their Oxyfix C-90 over long periods of time. By doing this, they deprive the micro-organisms living in the Oxyfix® of oxygen. When this occurs, the biological reactor will switch to an "anaerobiosis"...

  • Page 25: Warranties

    A 2 year warranty is issued covering all the electromechanical parts of the water treatment station under normal operating and installation conditions. Register your Oxyfix® C-90 in the Eloy Water data bank (by sending the identity card of the product duly completed or on line at www.eloywater.com )within 6 months of commissioning and benefit from an extended warranty of 5 years on the tank and one year on the electromechanical parts.

  • Page 26: Service Guide Appendices

    7. Service Guide Appendices Appendix 1 Example of a Service Check Sheet (with service agreement)

  • Page 27: Appendix 2 Example Of A Service Check Sheet (Without A Service Agreement)

    Appendix 2 Example of a Service Check Sheet (without a service agreement) Type of unit (Equivalent Persons): Serial Number: Date Commissioned: Owner's Name: Year Tank emptying Nature of service actions Date Signature 1 : ……….. 2 : ……….. 3 : ……….. 4 : ………..

  • Page 28: Installation Manual

    II. Installation manual Submerged Aerobic Fixed Film Technology Oxyfix® C-90 Range (1 to 99 PE)

  • Page 29: Implementation And Installation

    Topographical and Discharge Conditions • Sewage is fed to your Oxyfix C-90 through an inlet placed at the top of the tank and the treated water is discharged from an outlet also placed at the top of the tank. The difference between the inflow level in Compartment 1 and the outflow level in Compartment 3 is only 2 to 4 cm depending on the model of your Oxyfix C-90.
  • Page 30 Fig-8 : Dimensional drawing of the Oxyfix C-90 MB 5 et 6 PE Fig-9 Dimensional drawing of the Oxyfix® C-90 MB 7 PE...
  • Page 31 Fig-10 : Dimensional drawing of the Oxyfix® C-90 MB 8-9, 10-12 et 13-14 PE Fig-11 : Dimensional drawing of the Oxyfix® C-90 MB 15-17 et 18-20 PE Fig-12 : Dimensional drawing of the Oxyfix® C-90 MB 21-27 PE...
  • Page 32 Fig-13 : Dimensional drawing of the Oxyfix® C-90 CB 28-38 PE Fig-14 : Dimensional drawing of the Oxyfix® C-90 CB 39-58 PE Fig-15 : Dimensional drawing of the Oxyfix® C-90 CB 59-75 PE...
  • Page 33 Fig-16 : Dimensional drawing of the Oxyfix® C-90 CB 76-99 PE • The treated water may be discharged in a storm drain, water streams (creeks, rivers,…), a drainage field (designed according to the soil water index, in a tertiary treatment facility (lagoon), (lagunage),…...

  • Page 34: Transport

    Transport Oxyfix® C-90 has the following characteristics: OXYFIX® C-90 MB/CB RANGE Total PE connected 10-12 13-14 15-17 18-20 21-27 28-38 39-58 59-75 76-99 Total tank 1 volume 10,0 15,0 15,0 20,0 Total tank 2 volume m³ 10,0 10,0 15,0 20,0 Total tank 3 volume 10,0 10,0...

  • Page 35: Handling The Tank

    In cases where the tank is directly lowered in the ground using a crane truck. The truck should be able to reach the site safely by a roadway wider or equal to 3.5 metres and capable of withstanding high tonnage vPEicles. To safely get through the load requires a clearance height (free of any obstacle) of 4.5 meters.

  • Page 36: Excavation And Lowering The Unit In The Ground

    Please select appropriate slings according to site conditions: Load per sling (t) Minimum Oxyfix® length of Unloading with a Unloading with a C-90 the slings Using crane truck backhoe on levelled backhoe on ground uneven ground 4 500L 6 000L 7 500L 10 000L 15 000L...
  • Page 37 Water table : Our concrete units can be installed in wetlands, or in the presence of groundwater (see section 1.10 of the installation guide). Installing the unit near a groundwater table is possible provided that the water table does not rise above the lower level of the excavation. Depending on the local context and the level of water in the soil, a ballast slab may have to be laid over the tank (or an anchoring slab laid under the tank) if specified by the project manager or if suggested by the installer.

  • Page 38: Backfilling

    It is essential to keep a minimum gap of 50 cm between the tank and the walls of the excavation. When installing two or three tank units, it is essential to keep a minimum gap of 50 cm between each tank and to lay the bedding in a step pattern as shown in figure 19. When installing two tanks units, the height difference between the two tanks must be 100 mm max.

  • Page 39: Hydraulic Connection

    Fig-20: Backfilling Fig-21: Compact backfill þ Compact the backfill with care (by increments of 50 cm). A poorly compacted backfill can cause the side of the tank to crack. It is not recommended to do the compacting with a motor driven device. Hydraulic Connection Tank markings showing the inlet (IN) and outlet (OUT) indicate in which direction the water flows (hydraulic flow).
  • Page 40 heavy gases must be evacuated out to the atmosphere. This is the reason why it is essential to properly vent the Primary decanter. The compartment storing the sludge must be fitted with a 100mm or with a larger diameter vent pipe, separated from the treated and rain water pipes and run sufficiently high above the roof line to dissipate all noxious smells.

  • Page 41: Finishing

    Finishing þ Finish the backfilling operation using a material with a particle size distribution of between 0 and 6 mm (sand, small crushed stone, etc. ) up to the base of the cover risers (tank fully covered). þ Finish with topsoil, or with removed soil. The soil thickness above the three openings of the tank must not be greater than 80 cm, i.e.
  • Page 42 In cases where there is a risk that the tank might float, please contact Eloy Water or a competent consultant to design a ballast or anchoring slab.

  • Page 43: Sludge Recirculation Connection

    Sludge recirculation connection Oxyfix® C-90 1-4 to 6 PE The Airlift is pre-fitted by Eloy Water in the Oxyfix® C-90 unit. Oxyfix® C-90 7 to 21-27 PE Once your unit is properly installed, the air supply hose to the airlift neets to be connected (supplied with the unit) in order to recirculate the sludge from the clarifier back to primary tank.

  • Page 44: Oxyfix® C-90 28-38 To 76-99 Pe

    Recirculation must be between 0.42 and 0.69 liters per minute per population equivalent. For example, the Oxyfix C-90 9PE must recirculate between 3.78 and 6.21 liters per minute. In order to ensure that your airlift operates properly, it is essential to : 1.

  • Page 45: Blower Connection To Oxyfix C-90

    The flexible tubing shall be inserted in a sheath : - of 60 mm minimum for Oxyfix C-90 1-4 to 21-27 PE, - of 90 mm minimum for Oxyfix C-90 28-38 to 76-99 PE, In order to avoid any damage (crushing or tearing) likely to impact on the proper aeration of the Oxyfix®...

  • Page 46: Diaphragm Blowers (Oxyfix® C-90 1-4 To 21-27 Pe)

    4. Connect the blower and check the air tightness Side channel blowers (Oxyfix C-90® 38 to 99 PE) The blower is connected using a quick coupler fitted to the air supply line of the unit using a flexible hose (provided with the unit) The hose is also connected to the blower using a similar quick coupler.

  • Page 47: Electrical Connection

    Electrical connection þ Check if the existing electrical installation is adequate to connect the blower (proper current and power ratings, equipotential bonding - earthing - and if the ohmic value complies with the Electrical Installations standards of your country. Blower Blower Pump Pump...

  • Page 48: Connecting Side Chanel Blower And Its Temperature Sensor

    Connecting side chanel blower and its temperature sensor The blowers for Oxyfix® C-90 models 28-38 to 76-99 PE and their temperature sensor are directly connected to the mains through a control panel. To connect to the panel, please use the cables indicated in the wiring schemes provided. The electrical connection should be done by qualified personnel in compliance with local regulations.

  • Page 49: Connecting Electrical To Panel (Only Applies To Oxyfix® C-90 28-38 To 76-99 Pe)

    Once the electrical connections of the blower have been made, connect the two wires of the temperature sensor to the control panel by using the type of cable indicated in the wiring schemes. In order to guarantee the sealing of the access to the electric cables, two cable glands have been provided with the air blower.

  • Page 50: Motors Control

    Motors control : Never leave the automatic mode of the station outside site tests or prescribed by a qualified technician in water treatment. The change of these data may lead to a malfunction of the station and cause degraded performance. The blower and sludge pump are controlled by their own switch “I-AUTO-0”.
  • Page 51 Navigating inside menus : Navigation through the menus is performed using the arrow keys . Starting from the homepage, the key allows to navigate to the parameter screens and counters, and the key to the active faults. Homepage : Fig-39 : Homepage Blower parameters : Fig-40 : “Blower”...

  • Page 52: List Of Faults

    Language modification : The screen for language modification stands right after the one with the counters. • Press simultaneously the keys during 3 seconds (English / French) Fig-43 : “Language” screen List of faults Only qualified BA4 or BA5 qualified persons are authorized to work on the electrical installation.

  • Page 53: Magnetic Circuit Breaker Rarming Procedure

    If it triggers again in 10 minutes, check the current absorbed by the motor or call our technician. Comment: In case of persistent faults, please contact our technical service Eloy water : +32 4 382 44 22 Apart during on-site testing, do not leave the station out of another mode than automatic...
  • Page 54 +32 43 82 44 22 or your distributor. The blower and the recirculation pump provided with the Oxyfix C-90 38 to 99 PE are delivered complete with a control panel. The control panel class II IP65 enclosure features circuit breakers, motor controllers and two indicator lights.
  • Page 55 c. Checking the recirculation system: it is necessary from time to time to check if the system that recirculates the settled sludge from the clarifier back to the primary decanter works properly. Please contact your distributor if the recirculation system does not work properly. Be careful, there is a temporisation on the chanel blowers.
  • Page 56 The C-90 concrete tank are designed to support up to a If the backfill thickness is 60 to 80cm, use square cover maximum of 80 cm of backfill (20cm for Oxyfix C-90 15- risers of 80x80cm). 17 and 18-20PE) in addition to the pedestrian loading.
  • Page 57 ➢ Please refer to the installation procedures (Installation Can I disconnect my membranes blower Manual, section 1.10). (Oxyfix C-90 1 to 27 PE) when going on holidays? ➢ What is the diameter of the protective sheaths? ➢ It is recommended to use protective sheaths with a...
  • Page 58 ➢ Check that the venting system is not blocked, if it The sanitary appliances are not flushing out protrudes well above the roof line and whether it is fitted properly, what should I do? with a static or a wind powered extractor. There are several reasons for this: ➢...

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