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Clean Techn Environ Policy (2005) 7: 198202
DOI 10.1007/s10098-005-0271-5ORIGINAL PAPERShamim Ahsan Mohammad Arifur Rahman
Satoshi Kaneco Hideyuki Katsumata
Tohru Suzuki Kiyohisa OhtaEffect of temperature on wastewater treatment
with natural and waste materialsReceived: 5 August 2004 / Accepted: 16 December 2004 / Published online: 6 April 2005
Springer-Verlag 2005Abstract The eect of temperature on the wastewater
treatment with waste materials (refuse concrete and
refuse waste) and natural material (shell) was investigated. The removal of suspended solid (SS), phosphate
ion, nitrate ion, ammonium ion and chemical oxygen
demand (COD) were evaluated for the temperature
eect. Although the extensive improvement of removal
eciencies for nitrate ion and ammonium ion could not
be achieved by increasing the temperature, the signicant enhancement of the removal of SS and COD was
observed. The present wastewater treatment system is
simple, convenient and low-cost. Therefore, the developed methods can be applied to the small-scale plant
for the wastewater treatment in the local and nonexclusive areas.IntroductionEnvironmental pollution and its abatement have drawn
keen attention for a long time. The problems of
removing the pollutants from water and wastewater
have grown with rapid municipalization and industrialization. Control of water pollution has importance for
both organisms, which live in the water and those who
benet from water. In many countries, the municipal
wastewater (including industrial hazardous compositions) is treated biologically before being discharged into
the nearby watercourses (Chen et al. 2002). The secondary euent (i.e. the water after the secondary biological treatment) can be considered as a valuable
resource and integrated into the available water supply.
The euent usually contains some impurities, such as
ammonium, phosphorous and heavy metal ions. SS can
be further removed by using such techniques as coagulation and ltration. Most of the nutrients (i.e. ammonium and phosphorous), however, still exist in the
secondary euent and need to be treated eectively by
other technologies. They can cause various serious
problems, such as eutrophication. Phosphate removal
was achieved through the use of chemical precipitation
as well as biological treatment. Removal of ammonium
can be accomplished through the use of air stripping,
breakpoint chlorination, ion exchange, and biological
nitricationdenitrication (Metcalf & Eddy Inc. 1992).
On the other hand, the construction and operating costs
for these modern treatment technologies are very large.
Therefore, the technologies cannot...