Papers – Page 542 – TechConnect Briefs

Gold nanoparticles caused learning impairment in mice

Chen Y-S, Hung Y.-C., Liau I., Lin L.-W., Hong M.-Y., Huang G.S., National Chiao Tung University, TW

Aims : To investigate the toxic effect of gold nanoparticles (GNP) to the learning and memory of mice. Key findings: Both 17 nm and 37 nm GNPs induced severe sickness in mice. However, only 17 [...]

Enviroquip Membrane Bioreactor Systems – Novel Wastewater Treatment Process for Enhanced Nutrient Removal

Zhang K., Lewis C., Swanson M., Ball A., Enviroquip, US

Traditional wastewater treatment technologies are not sufficient in protecting sensitive receiving waters. Agencies are required to meet Enhanced Nutrient Removal (ENR) limits that are increasingly difficult to achieve (e.g. 3.0mgN/l and 0.1mgP/l). Various techniques are [...]

Innovations in Energy Efficient Decentralized Wastewater Treatment Systems:

Behrends L.L., ReCiprocating Water Technologies LLC, US

This paper will provide a brief overview of differences between conventional centralized wastewater treatment systems and the more recent decentralized systems. Brief comparisons will be made regarding differences in scalability, economics, energy efficiency, and environmental [...]

Using Secuirty Monitoring Tool to Improve Operation of the Water Distribution System

Kroll D., Hach Company, US

The distribution system represents the last analytical frontier in the water quality industry. Since 9/11, numerous communities have installed multi-parameter monitoring stations in locations throughout the distribution system as early warning systems based on potential [...]

AltelaRain Produced Water Treatment & Re-use

Godshall N.A., Bruff M.J., Altela Inc., US

Altela Inc. offers a fundamentally new water desalination product, the AltelaRainSM System (ARS) that inexpensively removes nearly 100% of dissolved salts and other contaminants from industrial wastewaters and undrinkable brackish waters. Altela has taken the [...]

Sustainable Desalination of Fresh Water

Stover R.L., Energy Recovery Inc, US

Seawater reverse osmosis is an advanced desalination process used to filter water in which seawater is forced through a semi-permeable membrane, producing pure water on one side and concentrated brine on the other. The process, [...]

Waste water is gold under our feet

Studer U., Rabtherm AG, CH

Each winter, we can see the heat, warm air, coming up the sewer shafts in city streets and we should realize the enormous heat potential that is down there and just flows away, untapped and [...]

Evaluating nanomaterial exposures in the workplace: A description of the approach used by NIOSH and a summary of findings from 12 site visits

Hodson L.L., Methner M.M., Geraci C.L., NIOSH, US

Health, safety, and environmental issues continue to be a high priority area to be addressed during the commercialization of nanomaterials or nanomaterial-enabled products (Lux 2008). Facilities engaged in the production or use of engineered nanomaterials, [...]

A Comprehensive Regulatory Policy Analysis

Horne N., Goldman School of Public Policy, US

Nanotechnology faces three significant challenges. First, the industry faces economic challenges due to increasing risk uncertainty, inefficient commercialization, and environmental, health, and safety (EHS) externalities. Secondly, legal challenges stem from a legal framework that fails [...]

Surface Constructions of Nano-Micro Structured CaP Biomaterials and Their Biocompatibility

Lin C.J., Wang H., Hu R., Lai Y.K., Geng Z.W., Xiamen University, CN

In this work, we concentrated our attention to develop various methods for surface construction of of calcium phosphate (CaP) and their composite coatings, including octacalcium phosphate (OCP), hydroxyapatite (HAp), micropatterned titanium surface by using electrochemical [...]