LOW-COST DOMESTIC WASTE WATER TREATMENT AND ANALYSIS

The motive of this paper to prepare some systematic low-priced and sustainable domestic waste water treatment system for household. To acquire this objective we collected samples from the household kitchen sink, basin, laundry etc. From the conclusion we learned that the tested parameters like BOD, COD, TDS, etc. displayed high removal of physical and chemical impurities. The treated water can be used for purposes such as irrigation, car washing, Flushing, etc.

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High Performance and N & P-Removable On-Site Domestic Waste Water Treatment System by Multi-Soil-Layering Method

Water Science & Technology ◽

10.2166/wst.1993.0010 ◽

1993 ◽

Vol 27 (1) ◽

pp. 31-40 ◽

Cited By ~ 54

Author(s):

T. Wakatsuki ◽

H. Esumi ◽

S. Omura

Keyword(s):

Waste Water ◽

Water Treatment ◽

High Performance ◽

Waste Water Treatment ◽

Treatment System ◽

Septic Tank ◽

Horizontal Distance ◽

Domestic Waste ◽

Water Treatment System ◽

Soil Layering

Multi-Soil-Layering (MSL) method was applied to make appropriate, but high performance and N & P-removable, on-site domestic waste water treatment system. The MSL soil unit is composed from soil layer mixed with 10∼25% of metal iron and pelletized jute. The MSL units were piled in a brick pattern at 5cm vertical and 10cm horizontal distance, which were surrounded by layers of Zeolite. Air can be supplied through porous pipes installed at adequate depths of the MSL system. The systems were tested using model houses. The waste waters, which were pretreated by septic tank to the level of SS 29-75, BOD 42-116, COD 32-56, T-N 29-86, and T-P 6-11 mg−l−1 respectively, could be treated at the rate of 100-850 1·m−2·d−1 without significant clogging. The mean concentrations of treated waters were SS 15, BOD 8.7, COD 11, T-N 6.8, and T-P 0.86 mg·1−1 respectively. Zeolite layers and brick pattern prevent clogging. Metal iron and jute pellets were effective to remove Phosphate and Nitrate. Intensive aeration assists decomposition of BOD, COD, and SS as well as nitrification, but decreases denitrif ication and phosphate fixation. The degree of purification could be controlled by setting adequate aeration.

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Low-Cost and Low-Energy Wastewater Treatment Systems: A South African Perspective

Water Science & Technology ◽

10.2166/wst.1991.0130 ◽

1991 ◽

Vol 24 (5) ◽

pp. 241-246 ◽

Cited By ~ 1

Author(s):

A. Batchelor ◽

R. Bocarro ◽

P. J. Pybus

Keyword(s):

Waste Water ◽

Water Treatment ◽

Low Cost ◽

Waste Water Treatment ◽

Low Energy ◽

Treatment System ◽

Water Treatment System ◽

Operational Information ◽

African Perspective ◽

Capital Construction

An overview of waste-water treatment alternatives in South Africa is presented. A comparison of the capital, operating and maintenance costs of biological filters, bio-discs, stabilisation ponds and an extended-aeration-actiyated sludge system suggest that stabilization ponds may be regarded as a low cost, low energy waste-water treatment system. However, in some instances, due to legal and land requirements they are not appropriate. In these instances a number of interacting factors play a role in determining the lowest cost option. The capital construction and operating costs of constructed wetlands are similar to those of stabilisation ponds but due to lack of full scale operational information they are not yet widely used as a waste-water treatment system.

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