Well, there is no concept of "divorce" in Hindu religion, unlike Islam and Christianity. In Hinduism, marriage is not only considered the bonding of two people, it is also considered as a life long bonding of two souls. It is considered as a sacred reunion which cannot be nullified or dissolved.Once two people are married, it is their final destiny and there is not turning back. According to Hindu scriptures and teachings, if a man is unhappy with his partner, he can leave her in the care of her parents and his parents and take sanyasa (that too, if he has fulfilled all his responsibilities towards her and the family). There is no sign or signal of the concept of divorce anywhere in Hinduism.
These days it happens, unfortunately, perhaps not divorce as much a separation. Severe abuse is one justifiable cause. Nobody deserves to live a life in an abusive situation. Of course the community should do all it can to deal with it. But by scripture, you're right, it's not there in scripture.
I don't think there is concept of divorce in Hinduism but as i have said in one of the posts there are 5 conditions mentioned in ramayana where in females can marry again. The conditions are as follows : If her husband is lost If her husband is dead If her husband is deserted If her husband becomes eunuch If her husband is outcasted As per Hindu marriage act, a Hindu can obviously file case for divorce and till the time they are not divorced they cannot remarry.
Thanks for sharing these five examples, as I was really not aware of this. Sounds cool. There is no reason why Hinduism should prohibit divorce!