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DAYLIFF BUF 4 Installation & Operating Manual

Ultrafiltration treatment plant
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BUF 4
Ultrafiltration Treatment Plant
Installation &
Operating Manual

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Summary of Contents for DAYLIFF BUF 4

  • Page 1 BUF 4 Ultrafiltration Treatment Plant Installation & Operating Manual...

  • Page 3: Table Of Contents

    INDEX SPECIFICATIONS 2. INSTALLATION 2.1 Equipment Specication 2.2 Module Description 3. OPERATION 3.1 Pre Treatment 3.2 Filtration & Flushing Process 3.3 Start Up & Start Up Pre Checks 3.4 Module Flushing 3.5 Shutdown 4. MAINTENANCE 4.1 CIP 4.2 Fouling 4.3 Handling & Storage Procedure for UF Membranes 5.

  • Page 4: Specifications

    Valve Drain DAYLIFF BUF4 Ultrafiltration plants are highly effective, easy to operate and simple to maintain systems that offer the ideal solution for small and medium scale water treatment requirements. Their particular application is for the removal of particles, colloidal material, sand, organic and inorganic polymeric particles.
  • Page 5 • System monitoring instruments including product flow meter and pressure gauges. • Skid mounted for simple installation. DAYLIFF BUF4 systems provide a high performance, high efficiency treatment process that produces fully potable water without chemical additions. The process uses low energy consumption and provides consistent quality without frequent operational intervention.
  • Page 6 1.1 Working Principle Ultrafiltration (UF) involves pressure-driven separation of materials from a feed solution. The technology is used to remove particulate and microbial contaminants, but it does not remove ions and small molecules. Pressure drives the process, which typically operates with a feed pressure of 0.2 to 2bar.

  • Page 7: Installation

    They offer the following features:- Ÿ Fully automated plant operation including normal filtration and flushing cycle. Ÿ High efficiency single Dayliff feed/backwash/Cleaning pump saving energy, i.e. Low CAPEX and OPEX. Ÿ Integrated automated backwash/flushing/cleaning process.

  • Page 8: Operation

    If the system is designed and installed to the conditions shown but the feed water quality is not maintained as required, then consult a Dayliff retailer. WARNING Depending on application, a safety screen of 120 microns is recommended on the feed to the UF system, which must be frequently cleaned at least once a day depending on the quality of water.
  • Page 9 Solenoid Flush Valve Pump Controller Solenoid Inlet Feed 120 Microns Valve Dayliff UF Membrane Strainder Flushing Ÿ Inlet solenoid valves closed| Flush Solenoid Valve Open | Drain solenoid valve open Solenoid Ÿ Settable timer settings - 30 Secs* Drain Valve Ÿ...
  • Page 10 Drain Flush Valve Pump Controller Solenoid Feed Inlet 120 Microns Dayliff UF Membrane Valve Strainder Ÿ Inlet solenoid valves closed| Flush Solenoid Valve Open | Drain solenoid valve open Solenoid Ÿ Settable timer settings - 60min* until no pH change...

  • Page 11: Start Up & Start Up Pre Checks

    3.3 Start Up and Start-up pre-checks Once the UF membranes supplied loose along with the equipment are installed inside the housing that carry the membranes, the following procedures should be followed for the start-up of Ultrafiltration unit. Manually start the equipment during initial operation. Flush the UF unit to remove the particles, debri and preservative storage solution before operating the equipment.

  • Page 12: Maintenance

    Frequency / initioal TMP* (at same temperature) 120 minutes (recycle and soak) or longer Duration (until no change in pH) Clean in Place Check with Dayliff retailer for approved Cleaning Solutions chemicals Cleaning Flux per 50L/m h Module Temperature Range...

  • Page 13: Fouling

    4.2 Fouling There are four types of fouling common to UF operations including particulate, biological, inorganic, and organic. Particulate fouling is caused by suspended solids, colloids, and turbidity that can be reduced by coagulation, sedimentation, clarification, and media filtration. The common cleaning method for particulate fouling is air scour and backwash.

  • Page 15: Trouble Shooting

    5. TROUBLE SHOOTING This troubleshooting guide can assist you in identifying common operating problems you may experience with your machine. The operator can easily correct many of these problems; however, for those that persist or are not understood, you should contact the Davis and Shirtliff Technical support team.
  • Page 16 5.2.1 Causes of Low Filtrate Flow Low Operating Pressure: check the mechanical devices as indicated previously. Fouled or Scaled Membrane: Accumulation of foulants or mineral scale on the membrane surface will reduce the filtrate or permeate flow. In most cases, membrane cleaning will be required.
  • Page 17 PROBLEM POSSIBLE CAUSE SOLUTION Identify the foulant. Follow the a p p r o p r i a t e c l e a n i n g Membranes are fouled procedure. Check the status and open Abnormal valve open degree Product flow degree valves Keep instruments calibrated...

  • Page 18: Terms Of Warranty

    6. TERMS OF WARRANTY i) General Liability In lieu of any warranty, condition or liability implied by law, the liability of Dayliff in Ÿ respect of any defect or failure of equipment supplied is limited to making good by replacement or repair (at the Company’s discretion) defects which under proper use appear therein and arise solely from faulty design, materials or workmanship within a specified period.
  • Page 21 www.davisandshirtliff.com INS499A-11/22...

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