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PHYSICAL-CHEMICAL TREATMENT OF WASTEWATERS GENERATED FROM THE PRODUCTION OF DINITRO BUTYL PHENOL AND BLADEX Adnan Shindala, Professor Marvin T. Bond, Associate Professor Department of Civil Engineering Mississippi State University Mississippi State, Mississippi 39762 INTRODUCTION The Vicksburg Chemical Company located in Vicksburg, Mississippi manufactures organic and inorganic chemicals which include potassium nitrate, dinitrobutyl phenol (DNBP), toxaphene, methyl parathion, substituted triazenes, nitric acid and chlorine. Major wastewater streams from the industrial complex are from the manufacture of methyl parathion, potassium nitrate, DNBP and Bladex. Comprehensive waste management studies were conducted on these major waste streams. The studies were designed to identify the most cost effective, environmentally sound and implementable waste management alternative for the industry. The results of the studies conducted on the wastewater streams from the dinitro butyl phenol (DNBP) and the bladex plants are presented in this paper. Results of the studies conducted on the methyl parathion and potassium nitrate waste streams are presented elsewhere [ 1 ]. WASTEWATER CHARACTERISTICS The manufacture of DNBP is a batch process that involves a sulfonation of ortho substituted butyl phenol with sulfuric acid, then with nitric acid. The wastewater from this process would contain various degradation products, butyl phenols and free acids. The DNBP is highly colored for dilute solutions, producing a bright yellow color at a low pH and a reddish brown color at a neutral or higher pH. Wastewater flow is approximately 6200 gallons/batch. The plant can produce 4-5 batches per 24-hour day and is currently in production 20 days per month. DNBP wastewater is discharged to a tank that permits the recovery of DNBP from the bottom while the upper level is used as equalization storage prior to carbon adsorption. Feed water to the carbon column is approximately 120 F. The manufacture of bladex by Vicksburg Chemical did not begin until June 1975, and produces the largest quantity of wastewater amounting to an average of 80,000 gallons per day. Raw materials used in the process include acetone cyanohydrin and ammonium hydroxide to produce amino acetone cyanohydrin (AACN), amines and substituted triazenes. There are a number of reaction products, in addition to the raw materials and bladex, that will be found in the wastewaters. Acetone cyanohydrin contains approximately 500 mg/1 of free cyanide, while AACN is optically active. The final reaction produces hydrochloric acid which is adjusted to a pH of approximately 9 units before discharge. A summary of the characteristics of these waste streams is presented in Table I. 335
Object Description
Purdue Identification Number | ETRIWC1978038 |
Title | Physical-chemical treatment of wastewaters generated from the production of dinitro butyl phenol and Bladex |
Author |
Shindala, Adnan Bond, Marvin T. |
Date of Original | 1978 |
Conference Title | Proceedings of the 33rd Industrial Waste Conference |
Conference Front Matter (copy and paste) | http://e-archives.lib.purdue.edu/u?/engext,27312 |
Extent of Original | p. 335-342 |
Collection Title | Engineering Technical Reports Collection, Purdue University |
Repository | Purdue University LIbraries |
Rights Statement | Digital object copyright Purdue University. All rights reserved. |
Language | eng |
Type (DCMI) | text |
Format | JP2 |
Date Digitized | 2009-06-22 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Resolution | 300 ppi |
Color Depth | 8 bit |
Description
Title | page0335 |
Collection Title | Engineering Technical Reports Collection, Purdue University |
Repository | Purdue University Libraries |
Rights Statement | Digital copyright Purdue University. All rights reserved. |
Language | eng |
Type (DCMI) | text |
Format | JP2 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Transcript | PHYSICAL-CHEMICAL TREATMENT OF WASTEWATERS GENERATED FROM THE PRODUCTION OF DINITRO BUTYL PHENOL AND BLADEX Adnan Shindala, Professor Marvin T. Bond, Associate Professor Department of Civil Engineering Mississippi State University Mississippi State, Mississippi 39762 INTRODUCTION The Vicksburg Chemical Company located in Vicksburg, Mississippi manufactures organic and inorganic chemicals which include potassium nitrate, dinitrobutyl phenol (DNBP), toxaphene, methyl parathion, substituted triazenes, nitric acid and chlorine. Major wastewater streams from the industrial complex are from the manufacture of methyl parathion, potassium nitrate, DNBP and Bladex. Comprehensive waste management studies were conducted on these major waste streams. The studies were designed to identify the most cost effective, environmentally sound and implementable waste management alternative for the industry. The results of the studies conducted on the wastewater streams from the dinitro butyl phenol (DNBP) and the bladex plants are presented in this paper. Results of the studies conducted on the methyl parathion and potassium nitrate waste streams are presented elsewhere [ 1 ]. WASTEWATER CHARACTERISTICS The manufacture of DNBP is a batch process that involves a sulfonation of ortho substituted butyl phenol with sulfuric acid, then with nitric acid. The wastewater from this process would contain various degradation products, butyl phenols and free acids. The DNBP is highly colored for dilute solutions, producing a bright yellow color at a low pH and a reddish brown color at a neutral or higher pH. Wastewater flow is approximately 6200 gallons/batch. The plant can produce 4-5 batches per 24-hour day and is currently in production 20 days per month. DNBP wastewater is discharged to a tank that permits the recovery of DNBP from the bottom while the upper level is used as equalization storage prior to carbon adsorption. Feed water to the carbon column is approximately 120 F. The manufacture of bladex by Vicksburg Chemical did not begin until June 1975, and produces the largest quantity of wastewater amounting to an average of 80,000 gallons per day. Raw materials used in the process include acetone cyanohydrin and ammonium hydroxide to produce amino acetone cyanohydrin (AACN), amines and substituted triazenes. There are a number of reaction products, in addition to the raw materials and bladex, that will be found in the wastewaters. Acetone cyanohydrin contains approximately 500 mg/1 of free cyanide, while AACN is optically active. The final reaction produces hydrochloric acid which is adjusted to a pH of approximately 9 units before discharge. A summary of the characteristics of these waste streams is presented in Table I. 335 |
Resolution | 300 ppi |
Color Depth | 8 bit |
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