Experimental Assessment on Effects of Growth Rates Microalgae <i>Scenedesmus </i>sp. in Different Conditions of pH, Temperature, Light Intensity and Photoperiod

Abstract

An experimental study using microalgae Scenedesmus sp. growth rates are conducted in varies of environmental conditions that aim to access the growth rates yields of microalgae Scenedesmus sp. tolerance and capability sustain in fluctuations condition of wastewater may permit. Synthetic aqueous of Basal Bold Medium (BBM) was used to cultivate in batch mode using reactor flask under different abiotic parameters such as pH, temperature, lux intensity and photo period. These conditions are chosen due to its influential key on microalgae growth yields, metabolism and nature of environmental where microalgae utilization took place. The initial concentrations of microalgae are kept constant at initials of 1000cells/ml as per APHA (2012) standards and other environmental factors are varies based on the nature of selected wastewater and surrounding nature. The maximum yields of Scenedesmus sp. specific growth rates subjected to abiotic conditions are pH range from pH7 to pH8, temperature is 25°C to 30°C, photoperiod is 12/12 (Light/Dark)(hr) and lux intensity of 4000. Significant of these findings shows microalgae Scenedesmus sp. can easily grow and adapt well in fluctuating of nature conditions as the optimums are precisely close to nature conditions.