Engineering Commons^™

Koncepcja Monitoringu Zanieczyszczeń Powietrza Wokół Elektrowni “Jaworzno Iii” Mobilną Stacją Pomiarową, Marian Mazur, Robert Oleniacz, Marek Bogacki, Ryszard Kozakiewicz

Robert Oleniacz

The paper presents the concept of air pollution monitoring around the Power Plant "Jaworzno III" (Poland) with the use of the mobile station. Aim of the new monitoring system is to provide information about the current state of air pollution and to enable an assessment of the environmental implications of the use of low-emission burners, run the installation of flue gas desulphurisation and changes in the way of releasing flue gases into the atmosphere. Due to economic, technical and practical the monitoring system was based on a single mobile station. Measurements will be carried out in a random scheme at …

Artificial Recharge In The Las Vegas Valley: An Operational History, Michael Johnson, Erin Cole, Kay Brothers, Las Vegas Valley Water District

Publications (WR)

Artificially recharging the Las Vegas Valley (Valley) ground-water system with treated Colorado River water is one water resource management option employed by the Las Vegas Valley Water District (District) to help meet future long-term and short-term peak water demands. The District began operation of an artificial ground-water recharge program in 1988 in order to bank water for future use and to slow declining water levels. Artificial recharge occurs in the winter months, typically from October to May, when there is excess capacity in the Southern Nevada Water System (SNWS), currently a 400 Million Gallon per Day (MGD) treatment and transmission …

The Study Of Permeability In Concrete, Jie Yuan

Theses

In this study, samples of regular, high performance, expansive and the polymer concrete and mortar were prepared for test of permeability and mechanical property. In the permeability measurement, water and an aqueous chemical solution were employed as the permeant.

The test results of the samples, ranging from 5.7 x 10-9 cm/sec to 1.0 x cm/sec for the permeability and 3800 psi to 10600 psi for compression strength, indicated that the polymer coated concrete has the lowest permeability among the concretes and high performance concrete has the highest compression strength . The finding leads to the possibility that a high strength …

Enhancing The Bioavailability Of Sorbed Pollutants From Sediments Using Ultrasound, Rachel Mathew

Theses

Many organic compounds, that enter aquatic systems have a strong tendency to sorb onto particulate matter which may be present in suspension or as sediment. Numerous studies have shown that the sediment in aquatic systems concentrate contaminants several orders of magnitude greater than the concentration in the aqueous phase. Particulate associated contaminants in sediments are not easily bioavailable. Hence the efficacy of any treatment technology would be strongly undermined if the contaminants are not made available for microbial utilization. Sediment associated contaminants can be made biologically available to various microorganisms under certain conditions.

In this study, desorption studies were conducted …

An Analytical Approach To Toxic Substance Replacement In Support Of Pollution Prevention, Ithan B. Zimmer

Theses

In support of pollution prevention and in accordance with Executive Order 12356 concerning pollution prevention, all federal agencies must comply with the Toxic Release Inventory (TRI) chemical release reduction and pollution prevention planning. The inventory lists hundreds of chemicals and choosing those to replace and finding actual replacement chemicals or procedures is not always clear. This study focuses on an analytical approach to this problem by understanding the application of two substances. The representative chemicals are two volatile organic compounds (VOC), ethyl ether and ethanol, used as solvents in ammunition manufacturing.

Thirteen military specifications provide the cases involving ether. Ethanol's …

Spalarnia Odpadów Lobbe W Dąbrowie Górniczej, Marian Mazur, Robert Oleniacz, Ryszard Januszek

Robert Oleniacz

This paper is a general characteristic of the industrial and hazardous waste incineration plant which was operated in Dąbrowa Górnicza (Poland) in the 90. The waste incineration plant is based on two incinerators - a rotary kiln and a multiple hearth furnace. Levels of selected air pollutant emissions presented in the work allow to assess the potential impact of this facility on air quality.

English title: The LOBBE incineration plant in Dąbrowa Górnicza.

Evaluation Of Environmental Characteristics Of Wtp Residuals For Disposal In Monofills, Ping Tian

Dissertations

Disposal of water treatment plant (WTP) have raised great concerns due to the stringent water quality standards and environmental regulations, and limited availability of land for ultimate disposal. The ultimate disposal of water treatment plant residuals by using monofill may be one of the most economical, and feasible options. Design and operation of such a monofill will be simple because of the uniformity of the characteristics of WTP residuals.

The objectives of this project were to determine the environmental characteristics of WTP residuals and to apply these characteristics for the design of monofills and development of the metal leaching model …

A Methodology For The Design Of An Integrated Air Stripping/Biofiltration Process To Clean Contaminated Aquifers, Pothitos Ioannis Stamatiadis

Theses

This thesis deals with the conceptual design of an integrated air stripping/biofiltration process for cleaning aquifers contaminated with volatile organic pollutants. In this technology, the pollutant is transferred from the aquifer to an air stream which is subsequently treated in a biofilter. The work presented here is an effort to develop a design methodology for the integrated process and suggests a general, quantitative approach which can be used in preliminary technology evaluation. This methodology involves relatively simple equations for the stripping process and detailed (oftentimes complex) models for biofiltration under conditions of continuous variation of the properties of the polluted …

The Influence Of The Wastewater Drainage From The Las Vegas Valley On The Limnology Of Boulder Basin, Lake Mead, Nevada-Arizona, James F. Labounty, Michael J. Horn, Bureau Of Reclamation

Publications (WR)

Lake Mead, Colorado River, Arizona-Nevada, is one of the most heavily used reservoirs in the western United States, providing abundant recreational opportunities as well as downstream domestic and agricultural water for over 22 million users. Based on average nutrient levels and productivity, Lake Mead is classified as mildly mesotrophic. The interflow of the Colorado River dominates the limnology of much of the 106 km-long reservoir, and may still be identified at Hoover Dam under certain conditions. The lower basin of Lake Mead ending at Hoover Dam is known as Boulder Basin and is near the Las Vegas metropolitan area. Las …

Pollutant Atmospheric Emissions From Portuguese Kraft Pulp Mills, João F. Gomes

João F Gomes

This paper describes systematic work done in the field of atmospheric emissions from Portuguese Kraft pulp mills. This study led to the determination of emission factors from stationary sources that proved to be an important tool to assess the need for investment on air pollution abatement equipment.

The Effect Of Varying Temperature, Flux And Pretreatment On The Microfiltration Of Lake Michigan Water, Karen Linda Kopp

Retrospective Theses and Dissertations

This study investigated microfiltration of Lake Michigan Water for the production of drinking water. A 60 gpm Memcor microfiltration pilot plant was operated for nine months at Manitowoc, Wisconsin to determine and model the performance characteristics of a microfiltration pilot plant for varying surface water conditions. Statistical regression and modeling was used to determine and develop quantitative relationships between time of operation and several operational variables for water quality and productivity. Modifications of Darcy's Law and flux decline data were used to develop a model relating temperature and flux to cleaning frequency. Statistical hypothesis testing and associated modeling were used …

Runoff, Erosion, And Soil Quality Characteristics Of A Former Conservation Reserve Program Site, John E. Gilley, John W. Doran, Douglas Karlen, T. C. Kaspar

Biological Systems Engineering: Papers and Publications

No-till and moldboard plow tillage systems were established on a former Conservation Reserve Program (CRP) site in southwest Iowa. Runoff rates from simulated rainfall events were significantly greater on sites returned to crop production than from adjoining, undisturbed CRP areas. Substantial soil loss was measured from the moldboard plow treatments, but no significant differences in erosion rates were found between the undisturbed CRP and no-till management systems. No-till management maintained levels of soil quality similar to those of CRP by preserving soil structural integrity and reducing losses of soil organic matter (SOM) associated with tillage. Conservation tillage systems which maintain …