Sludge Aeration Management Systems

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This relatively simple and low-cost aeration system is designed to maintain stored sludge in a semi-liquid, and hence pumpable condition, irrespective of the length of the storage period.

The introduction of air into the storage tank has two main effects on the sludge - that of effective mixing caused by the physical action of rising air bubbles, and that of odour reduction by the promotion of aerobic bacteria which digest toxins, fatty acids and ammonia, and reduces the biological oxygen demands of the sludge.

The system is relatively simple because it employs only a low energy consumption electric motor and pump, proven electronic solenoid valves and self-closing neoprene non-return outlet valve. All the piping is 1.5 inch class D u.p.v.c. which neither corrodes nor degrades.

Working on a time switch, the system is fully automatic and would typically run for two one-hour periods each day without any need for human intervention. Furthermore, the running costs have been shown by independent evaluation to be as low as 26 pence per day.

In the event of a tank being neglected, the S.A.M.S installation is perfectly capable of mixing heavily crusted sludge.

All working and electrical parts are mounted in a galvanized frame under a weatherproof removable hood at ground level outside the store. Compressed air is piped up and over the side of the tank floor via a symmetrical pattern of outlet branches. These are "blown" several times in rotation during the operational period.

"HOOK UP AND GO"

Messrs J & R Bradley of Crabtree Farm, St Michaels-on-Wyre, Lancashire had problems with their slurry crusting and smell until they found the S.A.M.S. system 12 years ago. Since then they can literally "hook up and go."
Without S.A.M.S. Mr. Bradley insists, "Take my machine away and you can take my tower down." Mr. Bradley also says that, "...I could spread slurry in my best suit if I wanted, it's so easy."

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