荷蘭DHV公司繼續(xù)擴(kuò)大其好氧顆粒污泥技術(shù)Nereda技術(shù)世界范圍內(nèi)大規(guī)模工程化應(yīng)用進(jìn)程其最新公布的業(yè)績(jī)顯示，Nereda技術(shù)將為都柏林規(guī)模40萬(wàn)m3/d的污水廠提供擴(kuò)容方案，利用原場(chǎng)地，就地?cái)U(kuò)容后的能力可達(dá)50萬(wàn)噸/m3，能力擴(kuò)充進(jìn)20%

水進(jìn)展觀察，此項(xiàng)目應(yīng)該是好氧顆粒污泥技術(shù)目前世界范圍內(nèi)最大規(guī)模的應(yīng)用DHV近幾年來(lái)，其專(zhuān)利技術(shù)Nereda技術(shù)的快速擴(kuò)充

Royal HaskoningDHV has been appointed by Irish  Water to the Ringsend Wastewater Treatment Plant project team to provide  expertise on its sustainable wastewater reduction treatment technology, Nereda®.  The Ringsend Wastewater Treatment Plant was originally designed to treat  wastewater for a capacity of 1.64 million population equivalent (PE) but is now  operating over that capacity at 1.9 million PE. This project is vital as the  population of Irelands capital continues to grow and the economic needs of the  area continue to expand.

In  2012 planning permission was granted for a 9km long sea outfall tunnel to  relocate the discharge of treated effluent into the Irish Sea. Since this  planning permission was granted, this advanced, nutrient-reduction treatment  technology known as Aerobic Granular Sludge (AGS) has been identified as an  alternative treatment process, which would allow the discharge of treated  wastewater to remain at its current location, removing the need to build the  tunnel, and therefore delivering significant savings on this project estimated  to be in the region of 170 million.

The  Nereda® aerobic granular sludge technology combines a small footprint with high  treatment efficiency and effluent quality, thus allowing the treatment process  and sustainable discharge to remain at the existing site in Dublin Bay.  Following the upgrade project, the Ringsend Wastewater Treatment Plant will  have the capacity to treat the wastewater of 2.4 million population equivalent  (PE) in compliance with the EU water quality directives.

Nereda® 簡(jiǎn)介 

Nereda®采用好氧顆粒污泥的獨(dú)到特性來(lái)處理廢水， 這種由凈化細(xì)菌形成的致密顆粒具有極佳的沉降性 能Nereda®由代爾夫特科技大學(xué)發(fā)明，通過(guò)獨(dú)特的公 私合營(yíng)方式，由Royal HaskoningDHV集團(tuán)與多所大學(xué) 荷蘭應(yīng)用水研究基金會(huì)(STOWA) 及荷蘭水務(wù)局合作開(kāi) 發(fā)Nereda®工藝已掀起了改革廢水處理工藝的新浪 潮

René  Noppeney, Royal HaskoningDHVs Global Director for Water Products &  Innovation said: We are very proud to contribute to upgrading one of the  worlds biggest municipal wastewater treatment plants in a sustainable manner  by providing expert knowledge on our Nereda® aerobic granular sludge  technology. The use of Nereda® would ensure that all wastewater generated in  the Greater Dublin Area is appropriately treated to safeguard human health and  protect the environment in compliance with Europes Urban Wastewater Treatment  Directive. 

Royal  HaskoningDHV is working on Irish Waters Ringsend Wastewater Treatment Plant  Upgrade Project in a consortium with its Irish partners, TJ OConnor &  Associates and J. B. Barry and Partners.   Overall completion of the Ringsend Project is estimated to be in the  early 2020s.

Subject to planning permission the Ringsend Wastewater  Treatment Plant in Dublin will be the fourth plant that Nereda® technology will  be in use in Ireland including Clonakilty, Carrigtwohill and Cork Lower  Harbour.

The revised project includes:

• Proposed exclusion of the 9km long undersea tunnel.

• Proposed increase in the flow through the plant by approx. 20% thereby increasing the amount of wastewater that can be treated and reducing the level of storm overflows which occur during heavy rainfall events.

• Proposed extension to treatment capacity and the use of AGS technology in the existing treatment tanks, increasing the capacity to 2.4 million Population Equivalent (PE) as approved by An Bord Pleanála in 2012.

• Proposed expansion of the plants sludge treatment facilities to match the overall increase in wastewater treatment capacity.

• Proposed provision of a new phosphorous recovery process.

• Proposed provision of additional odour control facilities.

In particular, it should be noted that:

• No increase in capacity over what was approved in 2012 is being proposed.

• The revised project will meet the same stringent odour control standards as set out by An Bord Pleanála in 2012.

• From an operational and visual perspective, the revised project is not expected to result in any significant change on the site of the plant from the project approved in 2012. The main change will occur outside the site due to the proposed exclusion of the 9km long undersea tunnel.

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