Masters Theses

Abstract

"This work examined the feasibility of the carbon adsorption system to treat a high organic strength waste (having a COD of 8,100 mg/£) from a pharmaceutical plant, and also compared the relative treatment efficiencies of two different kinds of carbon~ Calgon Filtrasorb 400 and Darco S-51, both having the same size ranges.

The overall treatment scheme employed consisted of chemical clarification and activated carbon adsorption. Jar tests were conducted to select a proper type of coagulant and determine an optimum dosage. Batch and column adsorption studies were conducted using both carbons.

Alum was found to be a better coagulant than ferric chloride for the specific waste studied. At a dose of ii 50 mg/£, the turbidity was reduced from 31 Ju to less than 5 Ju. Batch carbon adsorption studies indicated that the adsorption isotherms were in conformity with the Freundlich model. Column studies indicated that high efficiency organic removal could only be achieved for the initial small volume of the wastewater treated under this particular experimental setup. This was because the pharmaceutical waste had a very high organic concentration and as such, organic leakage through the carbon bed became common unless a very long contact time was provided. Similarly, both NH3-N and Org-N were removed only in the initial brief operation period. Since the original waste contained no phosphorus, there were no data available concerning the phosphorus removal by carbon adsorption.

This study also demonstrated that the two carbons tested differed in their adsorptive capacities. It was found that the Calgon carbon had nearly twice as much adsorptive capacity as the Darco carbon. On the weight basis, the former could adsorb COD to an extent of 19.9 percent, while the latter could reach only 8.8 percent when the carbon beds were completely exhausted"-- Abstract, pp. ii-iii

Advisor(s)

Huang, Ju-Chang, 1941-2018

Committee Member(s)

Grigoropoulos, Sotirios G.
Bolter, Ernest

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Civil Engineering

Publisher

University of Missouri--Rolla

Publication Date

1974

Pagination

ix, 79 pages

Note about bibliography

Includes bibliographical references (pages 76-78)

Rights

© 1974 K. A. Narasimhan, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 3072

Print OCLC #

6013609

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