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低温厌氧氨氧化——污水脱氮过程新突破

来源:水进展 | 2014-09-03 10:36:44
低温 脱氮
      Water board Hollandse Delta 污水处理厂、污水处理技术企业Paques以及荷兰应用水研究基金会正式开始Cenirelta计划,旨在展示一种极具潜力的节能污水处理技术,通过该技术能够得到非常纯净的出水。

 

      这个展示项目正在鹿特丹Dokhaven镇地下污水处理厂(人口当量620000)内开展,该项目合伙人同代尔夫特理工大学以及奈梅亨大学紧密合作,项目资金得到欧盟Life+计划赞助。

 

低温污水

 

      CENIRELTA是cost-effective nitrogen removal from waste water by low-temperature Anammox的首字母缩写,在厌氧氨氧化菌对污水进行厌氧处理的基础上,运用低温厌氧氨氧化工艺,低成本的实现污水脱氮过程。

 

      厌氧氨氧化工艺已被证实可以运用于高温度(30-35℃)高氮负荷的污水处理。在这个展示项目中,该工艺被进一步改进用于处理低温(10-20℃)低氮浓度的污水。

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                              荷兰鹿特丹Dokhaven城镇地下污水处理厂

 

最小碳排放

 

厌氧氨氧化工艺是污水脱氮过程的主要突破,相比于传统的硝化/反硝化过程,运行成本可降低90%,这直接影响到CO2的排放水平。因此,污水处理厂的碳排放量可以降到最低。

 

代尔夫特理工大学在厌氧氨氧化工艺的开发过程中扮演着主要角色。Paques公司已经将此项工艺申报专利用于商业目的,并且在全球范围内建立了11座污水处理厂。

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                                         含厌氧氨氧化菌的颗粒污泥

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低温厌氧氨氧化展示项目专家(从左到右)Andy Schellen(Hollandse Delta污水处理厂),Mark van Loosdrecht教授(代尔夫特理工大学),Jans Kruit(Paques公司)以及Cora Uijterlinde(荷兰应用水研究基金会)

 

【英文原文】

Water board Hollandse Delta, water technology firm Paques and water research institute STOWA officially started the Cenirelta-project to demonstrate a promising new energy-efficient waste water treatment technology producing a very clean effluent.

The demonstration project is being carried out in the underground municipal treatment plant Dokhaven in Rotterdam (620,000 population equivalents).

The project partners closely cooperate with Delft university of technology and Radboud University Nijmegen.

Cenirelta is financially supported by European Union's Life+ programme.

 

Low-temperature waste water

CENIRELTA is the acronym for cost-effective nitrogen removal from waste water by low-temperature Anammox, based on anaerobic treatment of waste water with Anammox bacteria (Anaerobic ammonium oxidation).

Anammox is a proven process at a temperature of 30-35 degrees Celsius and at high nitrogen loads. For this demonstration project the process has been refined to work at low temperatures (10 - 20 oC) and low nitrogen concentrations.

 

Minimum carbon footprint

The Anammox process is a major breakthrough in nitrogen removal. Compared to conventional nitrifation/denitrification, operational costs are reduced by up to 90% as are CO2 emission levels. This brings the plant’s carbon footprint down to a minimum.

Delft University of Technology has played a leading role in the development of the Anammox process. Paques has patented the process for commercial purposes and already built 11 plants worldwide.

This news item was originally published on the websites of  Waterschap Hollandse Delta and Stowa/cenirelta (in Dutch only).


 

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