MILK IN RIVERS

Bay of Plenty Beacon, Volume 05, Issue 48, 4 May 1942, Page 2

MILK IN RIVERS

SAVED FOR BRITAIN'S MOTHERS

AND CHILDREN

Britain's nursing mothers and children will have another .'J.000,000 gallons of milk a year as the result of a new method of dealing with waste water in dairies and milk-re-oeiving depots. An enormous quant 1 tv of water is used for washing out churns, lids nnd troughs, as well as for cleaning down floors on which milk has been spilt, and this waste water frequently carries away from 0..~i tc 1.0 per cent of the milk bandied. Thus, if the quantity of washing water is about the same as the quantity of milk dealt with, a milk depot handling 10.000 gallons of milk a day may also discharge each day JO.OOO gallons of waste water .containing from (i 0 tei 100 gallons of milk. In addition to this wastage there is also the trouble caused by the effect of the polluted water on streams into which, it has been discharged. Experiments carried out in the laboratories and on a large scale show that these waste waters can be purified by filtration in percolating filters. During the investigations, milk depots in Britain and in other countries were visited, and experiments were carried cut in the laboratories of the Rothamsted Experimental Station. It was soon found that, by simple modifications in the operations in depots and factories and bv greater attention to detail, the quantities of milk and of milk products carried away in waste water could be greatly reduced.