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METHOD OF WATERPROOFING ALGAL GROWTH PONDS WITH A METALLIC OVERBASE

IP.com Disclosure Number: IPCOM000242235D
Publication Date: 2015-Jun-26
Document File: 2 page(s) / 19K

Publishing Venue

The IP.com Prior Art Database

Related People

Baker Hughes Incorporated: OWNER [+2]

Abstract

A new method of reducing the loss of water by seepage into the ground or by evaporation into the atmosphere from open or raceway style ponds used to grow algae is disclosed. Water loss is a major economic cost and environmental concern for algae growers especially in more arid regions of the world. In the method, an additive in the form of a metallic overbase solution is sprayed on the surface of the pond. Water from the pond reacts with the overbase to form a barrier to evaporation. The additive may also be sprayed onto the bottom of a pond before filling with water. In this case, the overbase is present until moisture form the ground or water added to the pond reacts with the additive to form the barrier. The overbase may be applied to the surface or the bottom of the pond independently of each other either as needed to prevent water.

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method of waterproofing algaL growth ponds with a metallic overbase

A new method of reducing the loss of water by seepage into the ground or by evaporation into the atmosphere from open or raceway style ponds used to grow algae is disclosed. Water loss is a major economic cost and environmental concern for algae growers especially in more arid regions of the world. In the method, an additive in the form of a metallic overbase solution is sprayed on the surface of the pond. Water from the pond reacts with the overbase to form a barrier to evaporation.  The additive may also be sprayed onto the bottom of a pond before filling with water. In this case, the overbase is present until moisture form the ground or water added to the pond reacts with the additive to form the barrier. The overbase may be applied to the surface or the bottom of the pond independently of each other either as needed to prevent water.

The additive contains particles of 1 micron or less size which contributes to stability in dispersions of overbase and to ease of application of the additive. Once applied, the overbase additive remains in place until contacted with water in liquid or vapor form which causes a reaction that makes the particles grow in size. The larger particles formed by the reaction create the barrier to water loss. The overbase is preferably based on magnesium, calcium or a mixture thereof and contains an oxide, hydroxide, carboxylate or carbonate of the metals. To prepare the additive, m...