Determination of nitrate-N, ammonium-N and soluble salts of calcium, magnesium, potassium and sodium in wastewater from a meat processing plant

Date

11-1985

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Nieva T. Librojo

Abstract

The levels of nitrate and ammonium nitrogen and soluble salts of calcium, magnesium, potassium and ,odium were determined in wastewater from three storage lagoons of a meat processing plant in Cabuyao, Laguna. Levels of nitrate and ammonium nitrogen were determined by the use of nitrate ion-selective electrode and by steam distillation procedures, respectively. The concentrations of the soluble salts of Ca, Mg, Na and K were determined by atomic absorption spectrometry and flame photometry. Variation in the levels of nitrate and ammonium nitrogen were observed in the three lagoons sampled. Nitrate values ranged from 0.38 to 4.35 ppm while ammonium values ranged from 0.20 to 0.94 ppm over a 2-month period. The pH values also varied slightly from 7.66 to 7.91. In a similar study of wastewater from a food processing plant, the levels of nitrate was reported to vary from 0.03 to 46.26 ppm for a period of one year. The average value for the period was 3.36 ppm. The levels of the soluble salts of Ca, Mg, Na and K ranged from 35.0-81.5 ppm; 7.29-8.40 ppm; 90.4-126 ppm; and 35.0-52.5 ppm, respectively. For the period covered, the concentrations of inorganic nitrogen and soluble salt levels were found to be low.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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