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Aquaponics is one of several alternative food growing techniques that are being embraced by food growers worldwide. An aquaponic growing system that combines aquaculture (where growers raise aquatic animals such as snails and fish in tanks) and hydroponics (the process of raising plants in water and growing them without the use of soil). In this system of food growing, the water from the aquaculture portion of the system is fed into the hydroponic system. From there by-products are broken down by the nitrates and nitrites in plants, used as nutrients, and then re-circulated back into the system. Aquaponic gardening and farming enables growers to raise healthy food sources while preserving natural resources and the surrounding environment. Despite the many advantages this food production systems gives growers, there are several challenges that growers face in maintaining a healthy aquaponic growing system. A major concern that growers using this food production system need to address is the presence of algae. The presence of algae can have serious repercussions in the health and vitality of all organisms in an aquaponic grow system. Получить ссылку |
Handbook of Marine Macroalgae. Biotechnology and Applied Phycology
Автор: Se-Kwon Kim
Год издания:
The Handbook of Macroalgae: Biotechnology and Applied Phycology describes the biological, biotechnological and the industrial applications of seaweeds. Vast research into the cultivation of seaweeds is currently being undertaken but there is a lack of methodological strategies in place to develop novel drugs from these sources. This book aims to rectify this situation, providing an important review of recent advances and potential new applications for macroalgae. Focusing on the chemical and structural nature of seaweeds the book brings the potentially valuable bioactive nature to the fore. Novel compounds isolated from seaweeds are reviewed to provide an invaluable reference for anyone working in the field.
Freshwater Algae
Автор: Edward G. Bellinger
Год издания:
This is the second edition of Freshwater Algae; the popular guide to temperate freshwater algae. This book uniquely combines practical information on sampling and experimental techniques with an explanation of basic algal taxonomy plus a key to identify the more frequently-occurring organisms. Fully revised, it describes major bioindicator species in relation to key environmental parameters and their implications for aquatic management. This second edition includes: the same clear writing style as the first edition to provide an easily accessible source of information on algae within standing and flowing waters, and the problems they may cause the identification of 250 algae using a key based on readily observable morphological features that can be readily observed under a conventional light microscope up-to-date information on the molecular determination of taxonomic status, analytical microtechniques and the potential role of computer analysis in algal biology upgrades to numerous line drawings to include more detail and extra species information, full colour photographs of live algae – including many new images from the USA and China Bridging the gap between simple identification texts and highly specialised research volumes, this book is used both as a comprehensive introduction to the subject and as a laboratory manual. The new edition will be invaluable to aquatic biologists for algal identification, and for all practitioners and researchers working within aquatic microbiology in industry and academia.
CO2 Biofixation by Microalgae
Автор: Sihem Tebbani
Год издания:
Due to the consequences of globa l warming and significant greenhouse gas emissions, several ideas have been studied to reduce these emissions or to suggest solut ions for pollutant remov al. The most promising ideas are reduced consumption, waste recovery and waste treatment by biological systems. In this latter category, studies have demonstrated that the use of microalgae is a very promising solution for the biofixation of carbon dioxide. In fact, these micro-organisms are able to offset high levels of CO2 thanks to photosynthesis. Microalgae are also used in various fields (food industry, fertilizers, biofuel, etc.). To obtain a n optimal C O2 sequestration us ing micr oal gae, their cul tivatio n has to be c arried ou t in a f avorable e nvironment, corresponding to optimal operating conditions (temperature, nutrients, pH, light, etc.). Therefore, microalgae are grown in an enclosure, i.e. photobioreactors, which notably operate in continuous mode. This type of closed reactor notably enables us to reduce culture contamination, to improve CO2 transfer and to better control the cultivation system. This last point involves the regulation of concentrations (biomass, substrate or by-product) in addition to conventional regulations (pH, temperature). To do this, we have to establish a model of the system and to identify its parameters; to put in place estimators in order to rebuild variables that are not measured online (software sensor); and finally to implement a control law, in order to maintain the system in optimal conditions despite modeling errors and environmental disturbances that can have an influence on the system (pH variations, temperature, light, biofilm appearance, etc.).
Detection Methods for Algae, Protozoa and Helminths in Fresh and Drinking Water
Автор: Franca Palumbo
Год издания:
This is the second book in the Water Quality Measurement Series. It focuses on the analytical aspects related to epidemiology, toxicology, sanitary, engineering and plant technology to provide an integrated and clear strategy for carrying out surveillance, quality control, prevention and remedial measures. * Contains a significant number of tables, figures, colour and black and white photographs and spectra * Offers workable answers to specific practical issues using a comprehensive and scientifically sound approach
Aquaponics
Автор: Timothy Tripp
Год издания:
Aquaponic gardening is one of the best gardening options nowadays. This type of gardening refers to growing plants and fish at the same time. In other words, you use one aquaponics system that allows you to keep a garden and an aquarium at the same time. There are several reasons why aquaponic gardening is a good option nowadays. First, it is a very economical option. You only need to spend for a single system but have two types of hobbies or business opportunities. You don't need to have a separate place for your farm and your aquarium or fish pond as well as you get to utilize the same water for your tank and for watering your plants, so you get to save money.
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