Tuesday, April 23, 2024
Environmental Management

Design criteria for comminutor and Grinder in Wastewater Treatment Operations

Figure 6.3 depicts a typical comminutor. When designing a comminutor, head-loss should be considered. Head-loss through a comminutor is usually in the range of a few centimeters to 0.9 m (3 ft). Therefore, the manufacturer‘s ratings should be decreased by 70 to 80 percent to account for clogging of the screen, since manufacturer‘s head-loss characteristics are usually based on clean water flow (Crites and Tchobanoglous, 1998).

Read Also: Importance of Water Microbiology

When a comminution device is installed upstream of a grit removal device, the teeth of the comminutor are subject to high wear and tear. Rock traps are recommended to prolong the life of the comminutor. In addition, a bypass manual bar rack should be installed in the event that flow rates exceed the comminutor capacity or there is a mechanical failure.

Design criteria for comminutor and Grinder
Fig.: Typical Communitor Installation. (Reynolds/Richards, 1996).


Benadine Nonye is an agricultural consultant and a writer with over 12 years of professional experience in the agriculture industry. - National Diploma in Agricultural Technology - Bachelor's Degree in Agricultural Science - Master's Degree in Science Education - PhD Student in Agricultural Economics and Environmental Policy... Visit My Websites On: 1. Agric4Profits.com - Your Comprehensive Practical Agricultural Knowledge and Farmer’s Guide Website! 2. WealthinWastes.com - For Effective Environmental Management through Proper Waste Management and Recycling Practices! Join Me On: Twitter: @benadinenonye - Instagram: benadinenonye - LinkedIn: benadinenonye - YouTube: Agric4Profits TV and WealthInWastes TV - Pinterest: BenadineNonye4u - Facebook: BenadineNonye

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