Disk Diffuser
8Pages

Disc Diffuser Assembly, Operating and Maintenance Instructions Jaeger Group of Companies

1. Aeration Systems This manual describes in detail the installation and operating of Disc diffuser JetFlex HD 200, HD 270 and HD 340. In addition this manual may be used as guideline for disc diffusers HD 235, HD 325 as well as for ECO21 and ECO34. 2. General Jäger Umwelt-Technik GmbH & Co. KG (JUT) supplies diffuser for diffused air aeration in residential and industrial waste water treatment plants. The diffusers deliver fine bubble aeration suitable for the efficient treatment of wastewater treatment plants using the activated sludge process. Specially formulated EPDM compounds with...

Prior to assembly of the aeration system remove all debris (stones, metal scrap, wooden pieces etc.) from the aeration tank. Recommended laterals are standard plastic pipes (PVC or tempered PE) schedule 40 to schedule 80. Choose grommet size corresponding to wall thickness of lateral. All laterals must be levelled within ± 6.35 mm (± 1/4”) for proper function of diffusers. Air outlet holes in lateral for each diffuser must be predrilled and adjusted in accordance to the individual data sheets. Hole diameter ± 0.1 mm, vertical alignment of holes within ± 3°. Deburr all holes. Remove all...

7 Operating Instructions 7.1 Start-Up Instructions Prior to start-up clean the aeration tank from debris like stones, wooden pieces, metal parts etc. Keep the time between assembly and filling of the basin as short as possible. Ohterwise take the following steps: • • • • • • • Do not perform any work near the diffuser or above the aeration tank, which may damage diffusers; e.g. painting, welding, concrete sealing etc. Safeguard diffusers from falling parts. Fill tank with clean water approximately 20 cm above diffusers. Start blowers for 5 - 10 minutes and check for obvious leaks. Have...

Specifications 7.3 Trouble Shooting JetFlex Diffusers need very little maintenance even for long-term operation due to their high-performance materials. JUT recommends regular inspection intervals every 12 to 18 months in order to monitor fouling processes. Check pressure loss permanently with accurate pressure gauges, an increase of more than 20 mbar per year may indicate fouling or other problems. The most common problems and their recommended corrections are: 1. Indication: Possible cause: Procedure: Possible cause: Procedure: Large volume of air in localized area Leakage in lateral...

Specifications 7.4 Maintenance and Cleaning 7.4.1 Maintenance Check aeration continuously during regular operation for non-uniform bubble pattern and higher than expected headloss. Depending on the type of wastewater, treatment process, and operating conditions fouling of membranes may occur, thus reducing oxygen transfer. Remove deposits from membrane regularly, at least once a year. Sludge must not dry on the surface of the membrane, once hardened the sludge sticks to the membrane and will clog diffus-ers permanently. 7.4.2 Mechanical Cleaning Deposits on membranes can be removed just...

9. Recycling Observe all local and federal regulations for waste deposit at time of disposal. Clamps may be disposed of as scrap metal. In case of contamination check with authorities and/or a certified waste management consultant. 10. Disclaimer This information is based on our present state of knowledge and is intended to provide general notes on our products and their uses. It should not therefore be construed as guaranteeing specific properties of the products described or their suitability for a particular application. US units are for convenience only. Any existing industrial property...