burning

Discarding or burning papers that contain the name of Allah Ta'ala, etc.

Q:

1. How should we discard the papers/school books/note books having words written like Allah, Allah's names or ayahs etc.?

2. Which words need to be given respect and removed from before throwing away the books? Are the words Quran, Rasool, Nabi, Muhammad or any Surah's name to be discarded with respect?

3. If we burn them, can the ash be thrown anywhere?