Describe the steps involved in the primary and secondary treatment of sewage water in order to make it suitable for drinking purposes. 

The treatment of sewage water involves several steps to ensure it meets the necessary quality standards for drinking purposes. The process typically includes both primary and secondary treatment.

Primary Treatment:
1. Screening: The initial step involves the removal of large objects such as sticks, leaves, and debris ____ ___ ________ ______ _______ _______ ________.
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