- Home
- Companies
- Aquatech Environmental Systems Ltd.
- Products
- Aquatech - Model Rh - Waste Retrieval ...
Aquatech - Model Rh -Waste Retrieval System
Aquatech recognizes the necessity of providing the industry with a reliable, cost-effective system for managing fish farm waste. The Province of British Columbia recently announced that all new aquaculture sites must have a waste management system. The RH Waste Retrieval System is designed to remove the waste particulate that descends through the bottom of smolt pen systems. This ultimately improves water quality.
- removes waste particulate
- eliminates solid and soluble pond pollution
- reduces soluble phosphorous levels
- accelerates the transformation of organic wastes into bacterial biomass, carbon dioxide and water
- ensures sustainability of closed system fresh water fish rearing sites
- allows aquaculturalists to maximize their site’s biomass capacity
The system consists of three main components:
- weight ring
- passage cone (diaper)
- header network and pumping system
plus an on-shore storage and treatment tank
The weight ring and diaper are suspended directly below the bottom panel of the pen by 16 polyethylene ropes secured to the pens’ deck system. Tag lines from each of the eight corners of the weight ring are used to tie back the bottom panel of the net. This ensures the panel is stretched to its maximum, eliminating sagging from a build-up of waste and/or morts, which in turn cause fouling that restricts flow of waste through the pen into the diaper.
Waste, in the form of un-consumed feed and feces, descends through the pen into the diaper, where it settles into a 15″ diameter, 36″ deep funneled bottom collection cylinder. The collected waste’s viscosity is reduced in the collection cylinder by mixing in water pumped from the surface. This allows for easier pumping of waste from the cylinder via a 1 1/2″ suction line to the surface by a diaphragm pump.