Adsorption of aquaculture pollutants using a sustainable biopolymer
Adsorption of aquaculture pollutants using a sustainable biopolymer
Zadinelo, Izabel; dos Santos, Lilian; Cagol, Luana; Muniz, Graciela; Ellendersen, Luciana; Alves, Helton; Bombardelli, Robie
2017-11-27 00:00:00
Intensive aquaculture needs to adopt techniques that are able to contribute towards sustainability. Closed systems that employ water recirculation can combine intensive production with environmental sustainability, since there is no exchange of water or discharge of effluents into the environment. In order to achieve this, effective filtration systems are required to ensure that the water quality is satisfactory for the cultivation of aquatic organisms. Chitosan, an industrial waste material derived from crustacean farming, is a renewable natural material that is biodegradable and possesses adsorbent characteristics. In this work, chitosan foam was incorporated in filters and was evaluated as an adsorbent of aquaculture pollutants, adding value to the material and at the same time providing a use for industrial waste. The foam was characterized by scanning electron microscopy and energy dispersive spectroscopy, apparent density, and water absorption capacity. It was used to remove ammonia, nitrite, orthophosphate, and turbidity from aquaculture effluents. The foam consisted of a bilayer with smooth and porous sides, which presented low density, flexibility, and high water absorption capacity. The best proportion of the foam, in terms of the mass of foam per volume of solution (% m v−1), was 0.10, which resulted in removal of 32.8, 57.2, 89.5, and 99.9% of ammonia, nitrite, orthophosphate, and turbidity, respectively. This biopolymer produced is biodegradable, and when saturated with organic compounds from aquaculture, and no longer suitable for reuse as a filter material, it can be employed as a fertilizer, hence closing the sustainability cycle of the aquaculture production chain.
http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.pngEnvironmental Science and Pollution ResearchSpringer Journalshttp://www.deepdyve.com/lp/springer-journals/adsorption-of-aquaculture-pollutants-using-a-sustainable-biopolymer-UYcLNh0f12
Adsorption of aquaculture pollutants using a sustainable biopolymer
Intensive aquaculture needs to adopt techniques that are able to contribute towards sustainability. Closed systems that employ water recirculation can combine intensive production with environmental sustainability, since there is no exchange of water or discharge of effluents into the environment. In order to achieve this, effective filtration systems are required to ensure that the water quality is satisfactory for the cultivation of aquatic organisms. Chitosan, an industrial waste material derived from crustacean farming, is a renewable natural material that is biodegradable and possesses adsorbent characteristics. In this work, chitosan foam was incorporated in filters and was evaluated as an adsorbent of aquaculture pollutants, adding value to the material and at the same time providing a use for industrial waste. The foam was characterized by scanning electron microscopy and energy dispersive spectroscopy, apparent density, and water absorption capacity. It was used to remove ammonia, nitrite, orthophosphate, and turbidity from aquaculture effluents. The foam consisted of a bilayer with smooth and porous sides, which presented low density, flexibility, and high water absorption capacity. The best proportion of the foam, in terms of the mass of foam per volume of solution (% m v−1), was 0.10, which resulted in removal of 32.8, 57.2, 89.5, and 99.9% of ammonia, nitrite, orthophosphate, and turbidity, respectively. This biopolymer produced is biodegradable, and when saturated with organic compounds from aquaculture, and no longer suitable for reuse as a filter material, it can be employed as a fertilizer, hence closing the sustainability cycle of the aquaculture production chain.
Journal
Environmental Science and Pollution Research
– Springer Journals
Published: Nov 27, 2017
Recommended Articles
Loading...
References
Extraction and Characterization of Chitosan from Indian Prawn (Fenneropenaeus indicus) and its Applications on Waste Water Treatment of Local Ghee Industry
Bionanocompósitos preparados por incorporação de nanocristais de celulose em Polímeros biodegradáveis por meio de evaporação de solvente, automontagem ou Eletrofiação
Pereira, FV; Paula, EL; Mesquita, JP; Lucas, AA; Mano, V
Ionic cross-linked chitosan beads for extended release of ciprofloxacin: In vitro characterization
Srinatha, A; Pandit, JK; Singh, S
Acute toxicity of nitrite on tilapia (Oreochromis niloticus) at different external chloride concentrations
Yanbo, W; Wenju, Z; Weifen, L; Zirong, X
You’re reading a free preview. Subscribe to read the entire article.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”
Daniel C.
“Whoa! It’s like Spotify but for academic articles.”
@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”
@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Subscribe to Journal Email Alerts
To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don’t already have one.
Follow a Journal
To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don’t already have one.
Our policy towards the use of cookies
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.