title: Why does NZ’s new energy plan sideline renewables and ignore progress made already?

authors: Barton, Barry

subjects: electricity

abstract: With the public concerned about energy prices and security of supply, the government’s recently released energy package naturally attracted a lot of attention.

The package was criticised for being unlikely to either bring down prices or increase construction for new generation. But it’s just as important we see how much the plan assumes fossil fuels are the only answer, and how little it connects with important reforms already underway.

text: Why does NZ’s new energy plan sideline renewables and ignore progress made already? With the public concerned about energy prices and security of supply, the government’s recently released energy package naturally attracted a lot of attention.

The package was criticised for being unlikely to either bring down prices or increase construction for new generation. But it’s just as important we see how much the plan assumes fossil fuels are the only answer, and how little it connects with important reforms already underway.

year: 2025

title: EDTA in dairy wastewater and removal efficiency - A case study

authors: Xie, Congmin Zoe

subjects: EDTA cleaning

abstract: EDTA is the most widely used chelating agent for removal of undesirable cations in many industrial applications such as the dairy industry. It is generally considered to be non-biodegradable by conventional wastewater treatment, thereby potentially producing an environmental health risk. Under suitable conditions, however, EDTA has been reported to be effectively degraded by micro organisms during wastewater treatment. This study examined degradation of EDTA from a dairy wastewater treatment process in New Zealand operated at pH 8.0-8.2, with a three-week sludge retention time. An HPLC-UV analytical method was used to measure EDTA. A wide range of EDTA concentrations (93 to 5194 μg/L) was measured in the influent entering the wastewater treatment plant, while concentrations of 72-260 μg/L were measured in dairy effluent discharged into the local stream. About 93% of EDTA was degraded by the wastewater treatment. This study demonstrates that the wastewater treatment process at a dairy plant in New Zealand was very effective in removing EDTA.

text: EDTA in dairy wastewater and removal efficiency - A case study EDTA is the most widely used chelating agent for removal of undesirable cations in many industrial applications such as the dairy industry. It is generally considered to be non-biodegradable by conventional wastewater treatment, thereby potentially producing an environmental health risk. Under suitable conditions, however, EDTA has been reported to be effectively degraded by micro organisms during wastewater treatment. This study examined degradation of EDTA from a dairy wastewater treatment process in New Zealand operated at pH 8.0-8.2, with a three-week sludge retention time. An HPLC-UV analytical method was used to measure EDTA. A wide range of EDTA concentrations (93 to 5194 μg/L) was measured in the influent entering the wastewater treatment plant, while concentrations of 72-260 μg/L were measured in dairy effluent discharged into the local stream. About 93% of EDTA was degraded by the wastewater treatment. This study demonstrates that the wastewater treatment process at a dairy plant in New Zealand was very effective in removing EDTA.

year: 2012

title: Te Ira Atua: The spiritual spark of the child

authors: Rameka, Lesley Kay

abstract: “E ai ki tā te Māori he atua tonu kei roto i te mokopuna ina whānau mai ana ia ki tēnei ao” (Ministry of Education, 1996, p. 35). This quote is from the New Zealand Ministry of Education’s early childhood curriculum policy statement, Te Whāriki: He Whāriki Matauranga mo ngā Mokopuna o Aotearoa/Early Childhood Curriculum (Ministry of Education, 1996). It speaks of the godliness or spiritual essence each child inherits from their ancestors when they are born (Early Childhood Development, 1999; Reedy, 2003). From a traditional Māori perspective, not only is the child endowed with spiritual potential or a divine spirit, but the world the child is born into is also endowed with spiritual influences.

text: Te Ira Atua: The spiritual spark of the child “E ai ki tā te Māori he atua tonu kei roto i te mokopuna ina whānau mai ana ia ki tēnei ao” (Ministry of Education, 1996, p. 35). This quote is from the New Zealand Ministry of Education’s early childhood curriculum policy statement, Te Whāriki: He Whāriki Matauranga mo ngā Mokopuna o Aotearoa/Early Childhood Curriculum (Ministry of Education, 1996). It speaks of the godliness or spiritual essence each child inherits from their ancestors when they are born (Early Childhood Development, 1999; Reedy, 2003). From a traditional Māori perspective, not only is the child endowed with spiritual potential or a divine spirit, but the world the child is born into is also endowed with spiritual influences.

year: 2015