Treating Fruit-Processing Client’s Wastewater

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FRUIT CANNING WASTEWATER

economics

ECONOMICAL, LOW MAINTENANCE

Eliminate expensive chemical neutralisation - Affordable algae and bacteria replace the necessity for chemicals (such as lime or caustic)

PROJECT DECIDUOUS FRUIT, SA

appealing pond icon

WATER RECOVERY, IRRIGATION

Enables water recovery which also contribute towards the economical advantages. Treating 3500m3/day of wastewater towards irrigation standard.

Sun-powered Algae Ponding is a simplistic, economical, and reliable wastewater solution for this Top-brand Fruit Producer

The Fruit Factory
The Fruit Factory

Fruit processing wastewater bioremediation project for a fruit canning client. The use of algal ponding by Dekker Biotech, South Africa

The Langeberg & Ashton canned fruit products
The canned fruit products
The Algal Integrated Ponding System is not only economical and effective but also provides attractive and nuisance-free operation with low maintenance and operational costs.

Biggest Challenge

The biggest challenge was to design a system to treat fruit processing wastewater that could neutralise the acidic wastewater without using chemicals (such as lime or caustic) – this was achieved by implementing an HRAP (High Rate Algal Pond) which is a shallow pond allowing natural algae to grow at a high rate; these algae increase the alkalinity of the water, and this alkaline water is then blended with the acidic-fruit-canning-wastewater to effectively neutralise the acidity in the ponding system. This HRAP has a surface area of 2,500 m2 and to date is the largest of its kind in South Africa

This is a passive method of treating fruit processing wastewater and alternative to electrical mechanical aeration

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Photos below:

The integrated ponding system consists of ANAEROBIC, FACULTATIVE AND STABILISATION PONDS

Water Recovery:  The single most important advantage

Treating two separate fruit canning waste streams:  200 m3/day of saline water towards total evaporation and 3500 m3/day of organic wastewater towards irrigation standard.

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