Preparation of basic yttrium carbonate for phosphate removal

Water Environment Research;  July 1, 1997 ;     700+ words ......have been used as adsorbents for phosphate removal, including aluminum oxide (Gangoli...paper reports the use of BYC for phosphate removal. The BYC was prepared by the homogeneous...obtain the most effective BYC for phosphate removal. Their compositions and characteristics...

Iron and aluminum hydroxy (oxide) coated filter media for...

Water Environment Research;  July 1, 2001 ;     700+ words ......to 27.2 m^sup 3^/m^sup 2^.h), on phosphate removal efficiencies was evaluated for distilled...the process was very effective in phosphate removal (more than 90%) present in low concentrations...effectiveness of fixed-bed processes for phosphate removal because of the advantages these ...

Evaluation of the potential effects of equalization on the performance of...

Water Environment Research;  May 1, 2001 ;     700+ words ......release and uptake, leading to lower phosphate removal efficiency. The VFA loading to full-sca...lead to an increase in the overall phosphate removal capacity of these systems. This is...PAOs, causing an increase in the phosphate removal capacity of the system. However...

Removal of Low-Concentration Phosphorus Using a Fluidized Raw Dolomite Bed

Water Environment Research;  April 1, 2006 ;     700+ words ......and an alkaline (NaOH). Test results indicate remarkable phosphate removal levels for DW and SGW. Removal levels of 100% were attained...to explore the effectiveness of fixed-bed processes for phosphate removal because of the advantages these methods presented in their...

Significance of Design and Operational Variables in Chemical Phosphorus...

Water Environment Research;  May 1, 2008 ;     700+ words ......treatment and the corresponding phosphate removal from a design and operational...are consistent with the surface complexation model presented in a companion paper...develop a conceptual model for phosphate removal. The developed model is based...equilibrium principles-and can ...

SDA turns 80 and celebrates 'vital past'.(Soap & Detergent...

Chemistry and Industry;  February 20, 2006 ;     700+ words ......these proposals, pointing out that the cost per capita for phosphate removal in municipal wastewater treatment plants is low. As SDA...products, with an exemption for commercial products. Chemical phosphate removal costs 60cents/person/year, according to an SDA study conducted...

Removal of phosphorus using AMD-treated lignocellulosic material.

Forest Products Journal;  November 1, 2005 ;     700+ words ......eutrophication in surface water and reservoirs. We tested the phosphate removal capacity of juniper fiber through isotherm, kinetic, column...before processing. In the study reported here, we tested the phosphate removal capacity of juniper fiber through isotherm, kinetic, column...

Science

The Independent - London;  April 18, 1994 ;     700+ words ......some detergents are marketed as "phosphate-free", but a new report suggests that attitudes to phosphates may change when phosphate removal from sewage becomes mandatory in many parts of Europe by 1998. By the end of the century we may again be washing our clothes...

Low sludge carbohydrate content: A prerequisite for enhanced biological...

Water Environment Research;  November 1, 1997 ;     700+ words ......achieving enhanced phosphorus removal in EBPR process. Water Environ. Res., 69, 1290 (1997). KEYWORDS: activated sludge, phosphate removal, sludge carbohydrate. The enhanced biological phosphorus removal (EBPR) process is an economical and environmentally friendly...

The effect of intradialytic foot pedal exercise on blood pressure...

Renal Society of Australasia Journal;  July 1, 2008 ;     700+ words ...Abstract Introduction: Most dialysis patients have reduced aerobic power and muscle strength that often presents challenges in tolerating even the many activities required for daily living. As the American National Kidney Association recommends hemodialysis patients should be offered programs of

pH as a key factor in the competiton between glycogen-accumulating...

Water Environment Research;  March 1, 2001 ;     700+ words ......reactor. When the overall pH of the system was low, poor phosphate removal was observed. When the pH of the system was allowed to increase to a maximum of 7.5, phosphate removal improved, but was still incomplete. Total removal was only...

Micrex Development Corp.: Press Release.

Canadian Corporate News;  September 13, 2004 ;     502 words ......Magnetite as a source for ferric sulphate feedstock for their own use. Ferric Sulphate is an important inorganic coagulant for phosphate removal in water treatment, and is also good for sludge dewatering. Not only does Chemco represent a significant market for magnetite...

LOUISIANA DEPARTMENT OF ENVIRONMENTAL QUALITY ISSUES NOTICE REGARDING...

US Fed News Service, Including US State News;  March 30, 2006 ;     691 words ......Part 70 air operating permit #2394-V0. HII also requested to add the HF purification project that consists in arsenic and phosphate removal and includes the following changes. 1. Adds refrigeration capacity and equipment 2. Modifies the HF production unit 3...

Enhanced Biological Phosphorus Removal and Recovery

Water Environment Research;  July 1, 2008 ;     700+ words ......removal of phosphorus from wastewater can be achieved by chemical precipitation or biological mechanisms. Traditionally, phosphate removal from wastewater has occurred mainly via chemical precipitation. Chemical precipitation of phosphorus is possible, for instance...

A Strategy for Controlling Deposition of Struvite in Municipal Wastewater...

Water Environment Research;  March 1, 2005 ;     700+ words ......potentially valuable plant fertilizer-struvite. Water Environ. Res., 77, 199 (2005). KEYWORDS: struvite, magnesium hydroxide, phosphate removal, sludge digestion, sludge dewatering, centrate, filtrate. Introduction Anaerobic sludge digestion results in the release...