Unintended nutrient imbalance induced by wastewater effluent inputs to receiving water and its ecological consequences

Unintended Consequences.

Nutrient Elimination from Effluent of Municipal Wastewater Treatment Plant Applying Horizontal Roughing Filter

High levels of turbidity and suspended solids are the major disadvantages of aerated lagoons. Aerated lagoon effluent filtration was investigated by Horizontal Roughing Filter (HRF). Removal efficiencies were determined by examining total phosphorus (TP) and total Kjeldahl Nitrogen (TKN) from HRF influent and effluent, simultaneously. HRF pilot system located on effluent pump station of Qom was...

Acid rain and its ecological consequences.

Acidification of rain-water is identified as one of the most serious environmental problems of transboundary nature. Acid rain is mainly a mixture of sulphuric and nitric acids depending upon the relative quantities of oxides of sulphur and nitrogen emissions. Due to the interaction of these acids with other constituents of the atmosphere, protons are released causing increase in the soil acidi...

Diagnosis of Nutrient Imbalance in Wheat Plant by DRIS and PCA Approaches

The foliar diagnosis can be considered as a useful tool to assess the nutritional status of plants. The diagnosis and recommendation integrated system (DRIS) has been developed for this purpose. In this study DRIS norms were determined for wheat plant (Triticum aestivum L.) in the Moghan region, northwest of Iran. A data bank created from nutrients concentrations of flag leaf and yield was use...

Preempting Unintended Consequences

There is something called the “Law of Unintended Consequences.” Who enacted this law, who enforces it, and its exact scope are obscure. However, from time to time it manifests itself, most recently having made an appearance in some of the fallout from the Private Securities Litigation Reform Act of 1995 (“the Act”). One unintended or, perhaps more accurately, unforeseen consequence of the Act h...