STUDIES AND RESEARCH REGARDING THE UNITARY ENERGY CONSUMPTION OF A RECIRCULATING AQUACOL SYSTEM

This paper aims to highlight the consumption of electricity and caloric energy consumed by a recirculating aquaculture system for the growth of aquatic life. The energy needed to operate a recirculating aquaculture system for fish farming is divided into two categories, namely the electricity needed to operate various technological equipment, the main equipment in a recirculating aquaculture system that uses electricity being recirculation pumps, mechanical filters (some types), UV sterilization facilities and aeration systems. The second category of energy consumed is the caloric energy required for heating / cooling the water in the system and the hall

SAVE FUEL – THE MAJOR INTEREST OF FARMERS

The global economic crisis, the alarmingincreasefuel priceson international markets, accelerated globalwarming, the spending reduction with the crops,and Icould go onwith many otherarguments,need to findviablesolutionsto savefuel. It is known thatagriculturegenerally,self-propelled agriculturalmachinesinparticular,are largeconsumers offuel.These inputscanvarybetweenvery wide limits, from case to case,even thoughwe speakthe sameworkperformedwithidenticalmachinesinsimilarworking conditions. Regarding the bigdifferences infuelconsumption, in most caseswe findweaknessesin the regulationand operation ofagricultural machinerybymechanics.In this paperwepresent somesimple methodstosavingfuelbased onrational use ofagricultural machineswithoutcharges,without usingexpensiveequipment

STUDIES AND RESEARCH CONCERNING THE CONDITIONING OF WATER CHEMICAL PARAMETERS FROM A RECIRCULATING AQUACULTURE SYSTEM BY INTEGRATING AN INNOVATIVE WATER DENITRIFYING TECHNOLOGY

The paper aims to study the main issues regarding the productivity and efficiency of fish breeding and plant cultivation in aquaponic systems.Aquaponics is defined as a combination of aquaculture and hydroponic systems, in which waste water rich in nutrients from aquaculture system is introduced in a hydroponic system.Plants absorb nutrients from waste water thus improving and  purifying water from the aquaculture system, this method providing an ecological and sustainable system.Aquaponics integrates a hydroponic subsystem and an aquaculture subsystem, constituting the optimal practice for obtaining superior yields both quantitatively and qualitatively through the use of effluents from fish as a natural fertilizer for plants, the plants giving the fish filtered and reconditioned water. Aquaponics is a symbiosis of: aquaculture (fish breeding in closed systems) and hydroponics (growing plants in water without using soil). Vegetables, lettuce, special herbs (spinach, chives, basil and watercress) have low to medium nutrient needs and are well adapted to aquaponic systems.Plants absorb nutrients from residual water and thus improve or purify water in the aquaculture system, this method provides an ecological and sustainable system.