An economic assessment of algal turf scrubber technology for treatment of dairy manure effluent

2006 ◽  
Vol 26 (4) ◽  
pp. 321-327 ◽  
Author(s):  
C. Pizarro ◽  
W. Mulbry ◽  
D. Blersch ◽  
P. Kangas
Keyword(s):  
Economic Assessment ◽  
Dairy Manure ◽  
Algal Turf ◽  
Algal Turf Scrubber

scholarly journals COMPARAÇÃO DE MÉTODOS DE RUPTURA CELULAR E EXTRAÇÃO DE LIPÍDIOS DE BIOMASSA PERIFÍTICA

2021 ◽  
Vol 10 (1) ◽  
pp. 1-9
Author(s):  
Mainara Nicaretta Dahmer ◽  
Lisianne Brittes Benitez
Keyword(s):  
Algal Turf ◽  
Santa Cruz ◽  
Algal Turf Scrubber

O perifíton, ou biofilme, caracteriza-se como uma comunidade complexa de organismos aquáticos aderidos a substratos submersos, dentre os quais destacam-se as microalgas, as quais são componentes de um grupo variado de organismos, cujo conteúdo em lipídios reflete essa diversidade. O objetivo deste estudo foi desenvolver um método utilizando a irradiação por micro-ondas para rompimento da parede celular das microalgas visando a extração dos lipídios presentes com maior eficiência que o método tradicional de Bligh e Dyer. A biomassa empregada foi proveniente de um sistema Algal Turf Scrubber, localizado nas margens do Lago Dourado, em Santa Cruz do Sul, RS. Partindo de um planejamento fatorial 23, as amostras foram secas a 50 °C até peso constante, irradiadas por micro-ondas (65 °C e 200 W), centrifugadas, filtradas e secas a 70 °C até peso constante. O maior rendimento lipídico foi no experimento 7 (6,27 %), utilizando tempo de extração maior (15 minutos), menor quantidade de biomassa (300 mg) e maior proporção de metanol (2:1). Pelo método de Bligh e Dyer, o maior rendimento foi de 9,17 %, porém foram gastos 7 mL de clorofórmio, 1 mL de metanol e 5 horas e 50 minutos a mais. As condições de extração alteraram o perfil de ácidos graxos obtidos, já que, com a tecnologia de ultrassom obteve-se mais dois ácidos graxos (C:12 e C18:0 n-6 isômero) da biomassa. Concluiu-se que, a disrupção celular por micro-ondas pode ser utilizada como uma alternativa viável, pois, envolve menores tempos de processamento, mão-de-obra e gastos com solventes.

Algal turf scrubber (ATS) floways on the Great Wicomico River, Chesapeake Bay: productivity, algal community structure, substrate and chemistry1

2013 ◽  
Vol 49 (3) ◽  
pp. 489-501 ◽  
Author(s):  
Walter H. Adey ◽  
H. Dail Laughinghouse ◽  
John B. Miller ◽  
Lee-Ann C. Hayek ◽  
Jesse G. Thompson ◽  
...  
Keyword(s):  
Community Structure ◽  
Chesapeake Bay ◽  
Algal Community ◽  
Algal Turf ◽  
Algal Turf Scrubber

scholarly journals Bioproducts characterization of residual periphytic biomass produced in an algal turf scrubber (ATS) bioremediation system

2020 ◽  
Vol 82 (6) ◽  
pp. 1247-1259
Author(s):  
Maiara P. de Souza ◽  
Tiele M. Rizzetti ◽  
Michele Hoeltz ◽  
Mainara Dahmer ◽  
João A. Júnior ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Optical Emission ◽  
Algal Turf ◽  
Gas Chromatography Mass Spectrometry ◽  
Emission Spectrometry ◽  
Inorganic Analysis ◽  
Array Detector ◽  
Algal Turf Scrubber ◽  
Social Gain

Abstract The transformation of residual biomass from bioremediation processes into new products is a worldwide trend driven by economic, environmental and social gain. The present study aimed to evaluate the potential for obtaining bioproducts of technological interest from the remaining periphytic biomass formed during a bioremediation process with an algal turf scrubber (ATS) system installed in a lake catchment. Different methodologies were used according to the target bioproduct. Analyses were performed by high performance liquid chromatography with diode array detector (HPLC/DAD), gas chromatography mass spectrometry (GC-MS), ultraviolet–visible spectroscopy (UV-VIS) and inductively coupled plasma optical emission spectrometry (ICP-OES). The results demonstrated that the periphytic biomass presented potential since protein (17.7%), carbohydrates (22.4%), total lipids (3.3%) with 3.6 mg mL−1 of fatty acids, antioxidants (144.5 μmol Trolox eq. g−1) and chlorophyll a, chlorophyll b and carotenoids (1,719.7 μg mL−1, 541.2 μg mL−1 and 317.7 μg mL−1, respectively) were obtained. Inorganic analysis presented a value of 42.3 ± 2.58% of total ash and metal presence was detected, indicating bioaccumulation. The properties found in periphyton strengthen the possibility of its application in different areas, ensuring bioremediation efficiency.

Optimization of algal turf scrubber (ATS) technology through targeted harvest rate

2020 ◽  
Vol 9 ◽  
pp. 100360
Author(s):  
Bert Siville ◽  
Wiebke J. Boeing
Keyword(s):  
Algal Turf ◽  
Harvest Rate ◽  
Algal Turf Scrubber

scholarly journals Corrigendum to “Application of aqueous alkaline extraction to remove ash from algae harvested from an algal turf scrubber” [Algal Res. 35 (2018) 370–377]

2019 ◽  
Vol 43 ◽  
pp. 101654
Author(s):  
John E. Aston ◽  
Bradley D. Wahlen ◽  
Ryan W. Davis ◽  
Anthony J. Siccardi ◽  
Lynn M. Wendt
Keyword(s):  
Algal Turf ◽  
Alkaline Extraction ◽  
Algal Turf Scrubber

Performance of a Recirculating Aquaculture System Utilizing an Algal Turf Scrubber for Scaled-Up Captive Rearing of Freshwater Mussels (Bivalvia: Unionidae)

2013 ◽  
Vol 75 (4) ◽  
pp. 543-547 ◽  
Author(s):  
Zhitao Huang ◽  
Jess Jones ◽  
Junye Gu ◽  
Eric Hallerman ◽  
Timothy Lane ◽  
...  
Keyword(s):  
Freshwater Mussels ◽  
Algal Turf ◽  
Recirculating Aquaculture System ◽  
Algal Turf Scrubber ◽  
Recirculating Aquaculture ◽  
Aquaculture System ◽  
Captive Rearing

Life Cycle and Economic Assessment of Anaerobic Co-digestion of Dairy Manure and Food Waste

2015 ◽  
Vol 11 (2) ◽  
pp. 127-139 ◽  
Author(s):  
Rui Chen ◽  
M. Melissa Rojas-Downing ◽  
Yuan Zhong ◽  
Christopher M. Saffron ◽  
Wei Liao
Keyword(s):  
Life Cycle ◽  
Food Waste ◽  
Economic Assessment ◽  
Dairy Manure

Treatment of dairy manure effluent using freshwater algae: Algal productivity and recovery of manure nutrients using pilot-scale algal turf scrubbers

2008 ◽  
Vol 99 (17) ◽  
pp. 8137-8142 ◽  
Author(s):  
Walter Mulbry ◽  
Shannon Kondrad ◽  
Carolina Pizarro ◽  
Elizabeth Kebede-Westhead
Keyword(s):  
Pilot Scale ◽  
Dairy Manure ◽  
Algal Turf ◽  
Freshwater Algae ◽  
Algal Productivity
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