<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.ingawa zebaki mkusanyiko katika filtrate kuongezeka kwa sababu ya 10 0.4 kutoka ppm sehemu kwa milioni kwa 4.2 ppm baada 10 hupita, wingi wa protini kutumika ilikuwa chini sana.  <response>: although the mercury concentration in the filtrate increased by a factor of 10 from 0.4 ppm parts per millions to 4.2 ppm after 10 passes, the quantity of protein used was extremely low. 