diff options
| -rw-r--r-- | assignment2/potential-effects.tex | 55 |
1 files changed, 45 insertions, 10 deletions
diff --git a/assignment2/potential-effects.tex b/assignment2/potential-effects.tex index d3057e7..f995701 100644 --- a/assignment2/potential-effects.tex +++ b/assignment2/potential-effects.tex @@ -4,11 +4,41 @@ All three major stations in the lifecycle of the proposed dairy factory have to be considered for an assessment of the potential -effects of the project: preparation of the site (displacement of -existing uses) and construction, operation, and eventual close-down of -the facility. For the purposes of this assignment only the potential -impacts of the first two stages shall be addressed as they dominate -the life cycle impacts. +effects of the project: preparation of the site and construction, +operation, and eventual close-down of the facility. For the purposes +of this assignment only the potential impacts of the first two stages +shall be addressed as they dominate the life cycle impacts. This +includes the following activities: + +\begin{enumerate} +\item clearing of the site (displacement of existing uses) +\item construction work +\item water allocation +\item waste water discharge +\item packaging +\item transport of raw materials and goods +\end{enumerate} + +As the different activities at different stages may result in similar +effects on a given component of the socio-economic or physical +environment, it is more convenient to investigate the effects +separately for each component of the environment than to list the +effects by planned activities. The following components of the +physical environment \parencite[adapted from][]{glasson reading 1.1} are to be considered: + +\begin{enumerate} +\item Air and atmosphere +\item Water and soil +\item Vegetation and habitat +\item Human health +\item Landscape and cultural heritage +\item Energy +\end{enumerate} + + +\subsection{Water and soil} + +- water resources, quality, effects of soil changes on water etc \subsection{Preparation and construction} @@ -17,15 +47,23 @@ the life cycle impacts. \subsection{Expected impacts during operation} -The major impacts of \subsubsection{Water allocation} + - Changes in water quality parameters - for example, turbidity and + temperature levels can increase with reduced flows in rivers. + + \subsubsection{Discharge of waste water} The major waste material from processing milk in a dairy factory is contaminated water that has been removed from the milk or that has -been used to clean the factory. +been used to sanitise equipment and clean the factory. The +pasteurisation process that is used to kill off harmful bacteria in +the milk results in heated waste water. As most aquatic ecosystems are +very sensitive to temperature, discharges of warm waste water could +significantly affect the composition and dynamics of aquatic +communities around the discharge location \parencite{}. from NIWA: http://www.niwa.co.nz/our-science/freshwater/tools/kaitiaki_tools/land-use/meat-processing/impacts/water-resources-and-MDP @@ -50,9 +88,6 @@ http://www.niwa.co.nz/our-science/freshwater/tools/kaitiaki_tools/land-use/meat- - Changes in sediment accumulation - flow reduction affects movement and deposition of sediments in streams and rivers. - - Changes in water quality parameters - for example, turbidity and - temperature levels can increase with reduced flows in rivers. - - Increases in algae accumulation - algae respond to changes in temperature and nutrients, which are likely to increase with reduction of flow, especially during summer months. |