| Abstract |
The effect of changes on the rate of silica scaling has been studied at BR22 well. In a series of four long term experiments, it was found that the needed to be reduced to 5 at before scaling w a s reduced. As well, we found that the needed to be raised to = 9.0 before scaling was avoided, when w a s added. separated water reduced scaling and when the was lowered, very large amounts of arsenic and antimony sulphides were deposited. Aeration of aged water had no effect on scaling rates at neutral values. 'Ageing' of the |