Abstract |
By keeping records, weighing the quantities of consumer products used in 5 households, and measuring the water used for each plumbing fixture a detailed pollutant budget was obtained. Laboratory analysis for consumer brands used and actual samples of the wastewater for BOD, COD, ammonia, Kjeldahl and nitrate nitrogen, and inorganic phosphates are presented in table form for design of recycle systems, estimating pollution loads and for calculating the impact of consumer brands changes. Consumer products contributed less than 50% of the total pollution load. About half of the waste flow, 90% of the nitrogen, 60% of COD and 50% of phosphates were contributed by toilet wastes. Effective environmental protective measures appear to be reduction or elimination of water carried toilet systems and partial recycling of water between bathing and laundry. (Author) |