Electronic Theses and Dissertations

Identifier

1001

Date

2013

Document Type

Thesis

Degree Name

Master of Science

Major

Civil Engineering

Concentration

Environmental Engineering

Committee Member

Stephanie Ivey

Committee Member

larry moore

Committee Member

paul palazolo

Abstract

During the treatment of wastewater, many by-products are produced. One ofthese by-products, the sludge return stream, is produced from the sludge digestion and dewatering process. This high strength wastewater is known as a return stream because it is often returned to the beginning of the treatment plant to be combined with the influent. Because of its high strength, it often has a significant impact on influent concentrations of organics and nutrients. The main focus of this work was to study chemical treatment ofthe return streams at the Maxson WWTP in order to reduce pollutant loading on theinfluent. Regarding this, several coagulants and a flocculant were systematically tested on anaerobic lagoon supernatant using jar tests. Results showed that with optimum chemical dosage TSS could be reduced by 88%, VSS could be reduced by 97%, and COD could be reduced by 78%.

Comments

Data is provided by the student.

Library Comment

Dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.

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