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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A peroxide sensor for the food and beverages industry

Moody, A. P. January 2002 (has links)
No description available.
2

Control of disinfection by-products

Leung, Kai-shing, Alex. January 2008 (has links)
Thesis (M.Sc.)--University of Hong Kong, 2008. / Includes bibliographical references (p. 74-102).
3

Control of disinfection by-products

梁啟承, Leung, Kai-shing, Alex. January 2008 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
4

UV disinfection in comparison with other small scale disinfection technologies for the treatment of domestic greywater

Komvuschara, Kanyarat January 2002 (has links)
No description available.
5

The ozone disinfection performance of rotary contactors

Wallis, C. January 1991 (has links)
No description available.
6

Seed Treatment of Thirty Species of Pasture Grasses and Legumes with Certain Du Pont Disinfectants

Clark, Caleb Perrin January 1950 (has links)
This review has dealt primarily with the efforts of scientists to control certain smut diseases of grains. The principal reason for treating plant seeds is to obtain good stands of vigorous, healthy plants that will produce increased yields of superior seed.
7

The effects of seed-treating two soybean varieties with selected fungicides, and the effects of soybean seed treatment with Captan-Thiram on root nodulation and yield

Cole, Thomas Edward January 2010 (has links)
Digitized by Kansas Correctional Industries
8

Inactivation of Cronobacter (Enterobacter) sakazakii using different antimicrobial agents and the effect of sanitizers on biofilm formation properties

Castro, Luis Fernando. January 2009 (has links) (PDF)
Thesis (M.S. in food science)--Washington State University, December 2009. / Title from PDF title page (viewed on Jan. 20, 2010). "School of Food Science." Includes bibliographical references (p. 55-59).
9

Building disinfection chemistry: heterogeneous consumption of gaseous disinfecting agents and resulting by-product formation

Hubbard, Heidi Fay 28 August 2008 (has links)
Not available / text
10

Survey of disinfection efficiency of small drinking water treatment plants: Challenges facing small water treatment plants in South Africa

Momba, MNB, Obi, CL, Thompson, P 12 March 2008 (has links)
Abstract A survey involving 181 water treatment plants across 7 provinces of South Africa: Mpumalanga, Limpopo, North West, Free State, KwaZulu-Natal, Eastern Cape and Western Cape was undertaken to identify the challenges facing small water treatment plants (SWTPs) in South Africa . Information gathered included ownership and design capacity of the plants, water sources, and various methods of disinfection, equipment currently employed and performance of the treatment plants. In general, the majority (over 80%) of the SWTPs surveyed in the designated provinces were owned by the district municipalities. The designed capacities of these plants varied between 1 and 60 Mℓ/d; the smallest capacity was 100 m3/d and the largest 120 Mℓ/d. The small water treatment plants abstracted their raw water from either surface or groundwater or a combination of both water sources with greater preponderance for surface water sources (over 86%). Water treatment practices were noted to be the conventional types mainly coagulation, flocculation, sedimentation, filtration and disinfection. Two types of coagulants namely polyelectrolyte (66%) and alum (18%) were commonly used by the water treatment plants across the provinces studied. Rapid gravity filtration, pressure filter and slow sand filtration systems accounted for 60%, 23% and 9% of the filtration systems across the provinces, respectively. The predominant types of disinfectants employed were chlorine gas (69%) followed by sodium (15%) and calcium (14%) hypochlorite. Over 50% of the various SWTPs did not comply with the SANS 241 Class I (< 1 NTU) and Class II (1 to 5 NTU) recommended turbidity values. The recommended target range of 0.3 to 0.6 mg/ℓ free chlorine residual concentrations at the point of use was not always met by 40% of the plants. Seventy percent of the SWTPs complied with the SANS 241 criteria of microbiological safety of drinking water vis-à-vis total and faecal coliforms. Operational problems affecting the efficiency of small water treatment plants included: inability to appropriately determine the flow rate, chemical dosage and turbidity, lack of chlorine residual at the point of use and lack of water quality monitoring. To produce safe drinking water, appropriate operational practices must be implemented in all small water treatment plants.

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