Operational Considerations

Many of the operational problems associated with mechanically cleaned bar screens are the same as those for manual screens: septic wastes entering the primary, surge flows after cleaning, excessive grit in the bar screen channel, and frequent screen clogging. Basically, the same corrective actions employed for manually operated screens would be applied for these problems in mechanically operated screens. In addition to these problems, however, mechanically operated screens can have other problems; for example, the cleaner might not operate at all, or the rake might not operate but the motor does. Obviously, these are mechanical problems that could be caused by a jammed cleaning mechanism, broken chain, broken cable, or broken shear pin. Authorized and fully trained maintenance operators should be called in to handle these types of problems.

Guide to Alternative Fuels

Guide to Alternative Fuels

Your Alternative Fuel Solution for Saving Money, Reducing Oil Dependency, and Helping the Planet. Ethanol is an alternative to gasoline. The use of ethanol has been demonstrated to reduce greenhouse emissions slightly as compared to gasoline. Through this ebook, you are going to learn what you will need to know why choosing an alternative fuel may benefit you and your future.

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