Treatment and disposal of nata de coco wastewater

Date

1994

Abstract

The aims of the study were to determine the quantity of nata wastes generated per unit wright of product: to characterize the nata de coco wastewater, and to determine the changes that occur as nata wastewater percolated in the soil. Wastewater quality was analysed in terms of its physical characteristics such as pH, temperature, electrical productivity, total dissolved solids (TDS), total suspended solids (TSS) color and turbidity. Chemical parameters were also determined which included the concentration of ammonia, copper, chromate from nitrite, nitrate, phosphorous, sulphate, chemical oxygen demand (COD) and biochemical oxygen demand (BOD). The physical and chemical characteristics of nata de coco wastewater exceeded the maximum permissible limits of the revised water usage and classification of water quality strength waste as indicated by its high COD value ranging from 37,500 to 120,000 mg/lf. The movement of nata de coco wastewater in the soil is directly related to soil texture. Slower wastewater infiltration was observed in fine textured soil such as clay soil compared to silty clay soil used in the lysimeter study. The quality parameters of nata wastewater except for pH, decreased with soil depth. However, most residual concentrations for the parameters measured still exceeded the maximum permissible limits for effluents. These could pose pollution hazards to the ground water resources. The quality of soil was affected with the application of 10 liters nata wastewater. The values of pH and available phosphorous content of silty clay and clay soils decreased while CEC and total nitrogen content increased at 0 to 101 cm sampling depth. The application of 10 liters wastewater could alter soil quality at 0 to 10 layer of the soil. In general, nata de coco wastewater should not be directly dispose of to land and water due to the hazards it could bring. Treatment processes such as neutralization, aerobic or anaerobic treatment should be done first before it?s ultimate disposal to the environment. More replications should be done to obtain more conclusive relations between changes in the quality of the wastewater as it percolates down the soil. Further studies should also be conducted regarding the different treatment processes for nata de coco wastes.

Document Type

Master Thesis

Degree

Master of Science in in Agricultural Engineering

Language

English

LC Subject

Nata de coco

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 995 1995 A2 A45

This document is currently not available here.

Share

COinS