不同因素对超细电气石调控海水pH值的影响

Influences of Different Factors on The pH Value of Seawater by Super-fine Tourmaline Powder

研究了超细电气石粉对海水pH值的调控作用,探讨了海水盐度、初始pH值、电气石用量和电气石粒径等因素对电气石调控海水pH值的影响。实验结果表明:电气石粉的用量越多、电气石的粒径越小,其对海水pH值的影响越明显;随着海水盐度的升高,其调控速率变小,处理120 min后初始pH值为5,盐度为5、10、15、20和35的海水pH值分别增加了3.29、3.23、3.13、2.90、2.80;其对pH值为3～11的海水作用很明显,但对pH﹤3和pH﹥11的海水无明显效果。

In this paper,batch experiments were conducted to study the effects of super-fine tourmaline on the pH value of seawater.The factors affecting the regulation,such as the salinity and initial pH value of seawater,the dosage and the particle size of tourmaline,were also studied.The results showed that the more the amount of tourmaline and the smaller the particle size of tourmaline,the more obvious its effects on pH value of seawater.With the increase of salinity,the regulation rate was getting slower,after 120 minutes treatment,the initial pH value（5.0） of the seawater with a salinity of 5,10,15,20 and 35 was increased by 3.29,3.23,3.13,2.90,2.80 unit,respectively.The influence of water was significant between pH 3 to 11,but in pH 3 and pH 11 there was no significant effect.