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Issue 2

Global NEST Journal cover

Global NEST Journal

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Water quality: its practical implications to sustainable development in the Pearl River Delta, China


Hui Chi-chiu


This paper reviews the interactions between water supply, surface water quality, environmental management and sustainable development in the Pearl River Delta. As an economic center of the Pearl River Delta, Hong Kong has to import about 80 % of its potable water from Dongjiang. Ironically, the...

Sustainable development Point and non-point source pollution +2 more

Climate Change Impact on the Air Quality: The Portuguese Case


Borrego C., Miranda A.I., Carvalho A.C. and Fernadez C.


The changes in greenhouse gases and aerosols emissions are expected to lead to regional and global changes in temperature, precipitation, and other climate variables. The degree to which human conditions and the natural environment are vulnerable to the potential effects of climate change is a key...

Climate change air quality +4 more

European Policy on Port Environmental Protection


Goulielmos A.M.


Ports are part of the logistics chain and the transport networks, with a decisive role in the protection of the sea environment. In the present work, the environmental protection of ports is defined as a problem in the transport sector and within the marine environment. Port pollution and its causes...

Port environmental protection Port environmental policies +1 more

Gas injection into aeration tanks


Latsa M., Stamou A., Markatos N. and Assimacopoulos D.


Aeration is one of the most common stages in the liquid waste clarification process. Most aeration tanks are equipped with aeration devices that inject oxygen to enhance the biodegradation of the liquid waste. In this work an aeration process is simulated, where the air is injected from the bottom...

Aeration tank gas-injection +1 more

Physical and Chemical Characteristics of a Mediterranean Coastal Microenvironment: The "Salty Lake" of Aghios Nikolaos (Crete, Greece)


Mihopoulos N., Dassenakis M., Anastasakis G. and Scoullos M.


The present paper examines a small and deep (53 m) salty lake, as well as the adjacent harbor of Aghios Nikolaos (Crete). The survey was carried out in 1996. Physicochemical parameters indicated that the main characteristics of the system are the inflow of karstic water from underwater springs...

Marine coastal environment lake +3 more

Novel bifunctional catalytic systems for the SCR of NOx using hydrocarbons as reductants: Step one, NO oxidation


Christoforou S.C., Iliopoulos E.F., Efthimiadis E.A., Nikolopoulos A.A. and Vasalos I.A.


The oxidation of NO over Co-, Pt- and Rh-based catalysts was studied by combined catalytic activity and FT-IR studies. The activity of Co-, Pt- and Rh-based catalysts was measured in the presence and absence of H2O and SO2 in the feed. The activity studies showed that the support (Al2O3, TiO2, ZrO2)...

SCR NOx +3 more

Assessment of toxicity and anaerobic degradation of antiosmotic drug based pharmaceutical effluent in an upflow anaerobic fluidized bed system


Saravanane R., Murthy D. V. S. and Krishnainah K.


During the production of cephradine (a main constituent of anti-osmotic drug) a large quantity of concentrated effluent was produced. The main polluting compounds in this effluent are osmotic drug, acetic acid and ammonia. The main objectives of the study were to assess the toxicity in terms of...

Toxicity Bioaugmentation +4 more

Efficacy of Adsorbents of 2,4-D and Atrazine removal from water environment


Alam J. B., Dikshit A. K. and Bandopadhyay M.


The efficacy of low cost adsorbing materials for removal of 2,4-D (2,4 dichloro phenoxy acetic acid) and atrazine (2-chloro-4-ethyamino-6-isopropylamino-1,3,5 triazine) herbicides from drinking water was evaluated. Five low cost adsorbents, viz. wood charcoal, rubber granules, bottom ash, macro...

Maximum adsorption capacity Langmuir +4 more

Effects of wildfire suppression chemicals on people and the environment


Kalabokidis K.D.


Fire agencies worldwide apply millions of gallons of fire suppression chemicals on a broad array of ecosystems. These chemicals are considered to have minimal effects on the health of people who might be exposed to them. Only incidents of skin and eye irritation have been reported as a result of...

Fire retardants firefighting foams +2 more