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Water is a blessing and reason forsurvival on earth for human beings. Without water, it is not difficult to live on earth, but it is impossible. Water fulfills domestic, drinking, agricultural, and industrial requirements and makes everything useful for us. Unfortunately, rapid increase in population, unplanned agriculture practices, and industrial sector have become a serious issues for environment and for future needs. Water will be a very important issue for next generations to face. Safe water access up to 50−100 liters per day for drinking and sanitation is a right of every human being, recognized by the United Nations General Assembly in July 2010. Approximately, six billion people may suffer from scarcity of clean water by 2050. The agriculture sector is the largest consumer of freshwater around 70% followed by industry and domestic of 19 and 11%, respectively. The global demand for water is gradually increasing by 1% per year. Global demand for water is predicted to increase by 55% between the years 2000 and 2050. Existing global water demand has been projected to about 4600 km3 every year and estimation may increase up to 20−30%, in range of 5500−6000 km3 every year by 2050.

The internal audit is an efficient, free, and documented procedure for gathering audit evidence and objectively evaluating it to ascertain the extent to which the audit criteria are fulfilled. The internal audit is very effective tool not only to judge the level meeting the needed requirements but also to improve the Quality Management System of the organization and great impact for the improvement of the performance of testing laboratories, inspection, certification agencies, and can play vital role for the strengthening of any organization. Internal Audit is a major way out to read through to gain guarantee that the organization is actually doing what it says is doing. During the internal audits in accordance with any of the required check, an auditor makes sure that the actions taken to meet the quality objectives of the organization are appropriate, and management system is in compliance with the relevant standard/ check. Nowadays, quality is important in business and industrial world as it is actually the value addition. The organization must have a quality system in place to guarantee that the product or service being offered is of a high enough calibers to satisfy the needs of the clients.

Industrial sector is a backbone of the economy throughout the world. Despite that there are a lot of benefits; such as development of urbanization, major contributor in economy’s growth is sign of industrial development. There are a lot of adverse effects on environment including depletion and damage of our natural and precious resources. Textile, cement, paper and pulp, sugarcane, food, pharmaceuticals, chemical, paint and other industries are largest consumers of the freshwater; for meeting the requirements of industrial production requirement for the industrial sector for their production. As a result the discharged huge amount of water in form of highly polluted water, this is a great threat to our ecosystem. The unplanned industrialization is a prime responsible for degradation of environment. If industrial wastewater is not properly treated instantly, it may create foulest and septic conditions in adjacent parts of the industrial areas. The discharges acute poisonous wastewater by different industries is responsible for reduction of penetration in crops, and severely affects aquatic life. There are many treatment techniques such as coagulation, adsorption, membrane, biological etc. by different research studies disclosed that coagulation with different chemicals alum, ferric chloride, lime, PACl, PVA and ferrous sulphate are very effective for remove of pollution. The industrial wastewater creates several problems such as health problems, aquatic life including water pollution. In this paper reviews the chemical coagulation treatment technologies for industrial wastewater.