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Awarded contract for Athenry Mart Co-Op WWTP

Posted on July 8, 2013 by 1 Comment

Athenry Mart Co-Op has awarded Molloy Environmental Systems, a division of Molloy Precast, Tullamore, the contract to construct a new wastewater treatment plant to treat animal wastewater collected in the Mart. The system to be installed uses a novel wastewater treatment technology, developed locally by NUI Galway and licenced to Molloy Environmental Systems, known as the “Pumped Flow Biofilm Reactor” (PFBR). The contract was awarded due to this technologies numerous benefits including; low energy costs, ability to handle strong influents (Typical of that emitted from Marts), low maintenance costs and low sludge yields. The company have installed this technology in numerous villages and are working with other industrial applications such as Fish processing facilities. The Athenry Mart project is expected to commence in September of this year and is to be completed within 4 months. The treated effluent from the plant is to be discharged into the town’s wastewater treatment plant before being discharged into the Clarinbridge River.

Shannonbridge 500 PE WWTP

Posted on May 31, 2013 by 1 Comment

Molloy Environmental Systems have developed a Plug and Play wastewater treatment plant using PFBR technology. The first application of this technology is a 500 PE equivalent (225litres/person/day) wastewater treatment plant at Shannonbridge, County Offaly.

The use of a plug and play containerised system suited this site due to the risk of flooding. The existing Imhoff tank was utilised as a primary settlement tank, precast concrete tanks were installed for balancing and a concrete base was constructed for the Plug and Play PFBR unit. A precast concrete screen chamber was installed for preliminary screening.

Draft National Inspection Plan for Domestic Wastewater Systems

Posted on October 19, 2012 by 2 Comments

The Environmental Protection Agency (EPA) is developing a National Inspection Plan for Domestic Waste Water Treatment Systems (to be called the ‘Inspection Plan’ throughout this document) as required under the Water Services (Amendment) Act 2012. Domestic waste water treatment systems can and do cause pollution when they are not properly sited, installed or maintained. This discussion document sets out the general principles which the EPA proposes to use in the Inspection Plan, drawing on experience and best international practice in science and regulation. The EPA invites interested parties and individuals to submit comments for consideration.

See link to draft National Inspection Plan >>

Draft Septic Tank Inspection Plan

Domestic Wastewater Treatment: An Introduction

Posted on July 4, 2012 by Comments are off

Over 400,000 households in Ireland have on-site wastewater treatment systems. Typical wastewater treatment systems have two components, namely, a septic tank and a percolation area. Both components are essential to ensure adequate wastewater treatment. Inadequately treated wastewater can impact on the quality of ground water, drinking water and surface water which in turn can affect human health as well as the surrounding environment.

Domestic wastewater is made up of solids, biological pollutants as well as fats, oils and greases (FOGs). Removal of these materials is by a combined effort between the septic tank and percolation system. The purpose of a septic tank is to remove FOGs and solids from the wastewater, while the purpose of the percolation area is to biologically treat the wastewater, removing biological pollutants and to distribute treated wastewater into the groundwater network. It is vital that both components are installed and maintained properly to ensure a trouble free on-site wastewater treatment system.

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