Benefits of Implementation of ISO 9001 Standards In Customer Services Department In Abu Dhabi Municipality

I would like to have an research on the benefits of implementation of ISO 9001 Stander in Customer services department in Abu Dhabi Municipality.
http://www.adm.gov.ae//En/Sitemap/sitemap.aspx?&MenuID=70&mnu=Pri
1- first of all you need to Explain what is ISO in General and ISO 9001.
2- You need to explain the situation without quality and ISO stander what is general common problem which effect on customer expectation and perception and satisfaction
3- The benefits of implementation ISO 9001 in a services section that offer services like our study will be in Abu Dhabi municipality ( you should imagine the benefits if AD municipality apply ISO 9001 )
You need to provide theory and evidence to support the concepts.