How does triclosan, chloroxylenol, and blean ( sodium hypochlorite) affect the environment?

I need you to please answer these three questions, NO PLAGIARISM please, this paper must be submitted to turnitin.com, also, please use primary sources only.
1.how are the chemicals Triclosan, Chloroxylenol, and Blean (sodium hypochlorite)neutralized?
2.What is the role of septic tanks? and how many homes use septic tanks in the US still?