Results 111 to 120 of about 13,909 (224)

Elevating phosphorus accumulation in waste stabilisation pond algae : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Environmental Engineering at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 2019
Facultative waste stabilisation ponds (WSP) are used globally for wastewater treatment due to their low cost and simple operation. While WSPs can be effective at removing organic pollutants and pathogens, phosphorus removal is typically poor.
Sells, Matthew
core  

Dynamic model of a municipal wastewater stabilization pond in the arctic

open access: yesWater Research, 2018
Waste stabilisation ponds (WSPs) are the method of choice for sewage treatment in most arctic communities because they can operate in extreme climate conditions, require a relatively modest investment, are passive and therefore easy and inexpensive to operate and maintain.
Recio-Garrido, Didac   +3 more
openaire   +3 more sources

Nitrification in bulk water and biofilms of algae wastewater stabilization ponds

open access: yesWater Science and Technology, 2007
Nitrogen removal in wastewater stabilization ponds is poorly understood and effluent monitoring data show a wide range of differences in ammonium. For effluent discharge into the environment, low levels of nitrogen are recommended. Nitrification is limiting in facultative wastewater stabilization ponds.
M A, Babu   +4 more
openaire   +2 more sources

Evaluation of waste stabilization ponds for the reduction of Giardia cysts

open access: yesRevista Técnica de la Facultad de Ingeniería, 2010
Giardia cyst concentration was studied at the different lagoons of a system located at the Center for Water Research at La Universidad del Zulia.
Walter Quintero Betancourt   +3 more
doaj  

Performance of an Oxidation Pond- A Case Study [PDF]

open access: yes, 2009
The treatment performance of the sewage treatment oxidation pond of a Rourkela Steel Plant was assessed in terms of pH, biochemical oxygen demand (BOD5), turbidity and dissolved oxygen from the influent.
Nayak, Ashish Kumar
core  

Effects of carbon dioxide addition on algae and treatment performance of high rate algal ponds : a thesis presented in partial fulfilment of the requirements of the degree of Master of Engineering in Environmental Engineering at Massey University [PDF]

open access: yes, 2006
Waste stabilisation ponds have been used for treating a great variety of wastewaters around the world for many decades. More advanced systems combine anaerobic or advanced facultative ponds with high rate algal ponds (HRAP) followed by a number of algae ...
Heubeck, Stephan
core  

A Numerical Guide to Volume 2 of the Guidelines and Practical Advice on how to Transpose them into National Standards [PDF]

open access: yes, 2008
[INTRODUCTION] In 2006, the World Health Organization published the third edition of the Guidelines, in collaboration with FAO and UNEP. The third edition consist of four volumes; volume 2, explained in this guidance note, addresses methods, procedures ...
Mara, D.D.
core  

An assessment of the cost effectiveness of vegetation harvesting as a means of removing nutrient and metals from ponds [PDF]

open access: yes, 2005
This paper reports on an investigation to quantify the mass of pollutants removed from a stormwater retention pond by routine vegetation harvesting. The amount of plants can increase the costs of ponds, and the increased costs of plant maintenance may ...
Barrett, M.   +2 more
core  

Application of ponding systems in the treatment of palm oil mill and rubber mill eflluents [PDF]

open access: yes, 1980
Ponding is proposed as a viable low-cost treatment method for .palm oil and rubber mill effluents. Theoretical considerations were reviewed and discussed in relation to the design of ponds.
Wong, Kien Kuok
core  

Simulation of Wastewater Parameters in Stabilization Ponds (Case Study: Tehran Wastewater Stabilization Pond)

open access: yesBiosciences Biotechnology Research Asia, 2011
S.A. Mirbagheri   +4 more
openaire   +1 more source

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