The long-term effects of wall attached microalgal biofilm on algae-based wastewater treatment

Su, Yanyan; Mennerich, Artur; Urban, Brigitte

doi:10.1016/j.biortech.2016.06.099

Cited by 37 publications

(13 citation statements)

References 16 publications

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“…The manure treatment process tends to couple with anaerobic digestion, which reduces the treatment cost along with nutrient recovery for microalgae, and manure then becomes a resource [14]. The different type of wastewaters from municipal, piggery and food industries was used as resource for microalgae cultivation and its growth has been investigated [15,16].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Mixed Wastewaters on the Biomass Production and Biochemical Content of Microalgae

et al. 2019

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The effect of ammonia and iron concentration in Bold Basal Medium and mixed wastewater (including pretreated piggery wastewater and acid mine drainage) on biomass production and biochemical content (lipid and ß-carotene) of microalgae (Uronema sp. KGE 3) was investigated. Addition of iron to the Bold Basal Medium enhanced the growth, lipid, and ß-carotene of Uronema sp. KGE 3. The highest dry cell weight, lipid content, and lipid productivity of KGE 3 were 0.551 g L-1, 46% and 0.249 g L-1 d-1, respectively, at 15 mg L-1 of Fe. The highest ß-carotene was obtained at 30 mg L-1 of Fe. The biomass production of KGE 3 was ranged between 0.18 to 0.37 g L-1. The microalgal growth was significantly improved by addition of acid mine drainage to pretreated piggery wastewater by membrane. The highest dry cell weight of 0.51 g L-1 was obtained at 1:9 of pretreated piggery wastewater by membrane and acid mine drainage for KGE 3. The removal efficiencies of total nitrogen and total phosphate was ranged from 20 to 100%. The highest lipid and ß-carotene content was found to be 1:9. Application of this system to wastewater treatment plant could provide cost effective technology for the microalgae-based industries and biofuel production field, and also provide the recycling way for pretreated piggery wastewater and acid mine drainage.

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Section: Introductionmentioning

confidence: 99%

The Effect of Mixed Wastewaters on the Biomass Production and Biochemical Content of Microalgae

et al. 2019

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“…vulgaris mixture was relatively strong. It is unavoidable to form biofilm on the wall of reactor, the final treatment efficiencies will be affected by some parameters such as the decreased illumination intensity or shortage of nutrient 27 . However, according to our experiences 28 , 29 , algal-fungal symbionts achieved relatively high biomass for 10 days and the removal efficiencies of pollutants decreased after 10 days, which will lead to poor economic efficiency if last for a longer period of cultivation time.…”

Section: Resultsmentioning

confidence: 99%

Co-cultivation of fungal-microalgal strains in biogas slurry and biogas purification under different initial CO2 concentrations

Zhou¹,

Zhang

Jia

2018

Sci Rep

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The effects of five different microalgae-fungi on nutrient removal and CO2 removal were investigated under three different CO2 contents (35%, 45% and 55%). The results showed that the highest nutrient and CO2 removal efficiency were found at 55% CO2 by cocultivation of different microalgae and fungi. The effect of different initial CO2 concentration on the removal of CO2 from microalgae was significant, and the order of CO2 removal efficiency was 55% (v/v) >45% (v/v) >35% (v/v). The best nutrient removal and biogas purification could be achieved by co-cultivation of C. vulgaris and G. lucidum with 55% initial CO2 content. The maximum mean COD, TN, TP and CO2 removal efficiency can reach 68.29%, 61.75%, 64.21% and 64.68%, respectively under this condition. All highest COD, TN, TP and CO2 removal efficiency were more than 85%. The analysis of energy consumption economic efficiency revealed that this strategy resulted in the highest economic efficiency. The results of this work can promote simultaneously biological purification of wastewater and biogas using microalgal-fungal symbiosis.

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“…Ammonium nitrogen was removed from the sewage in over 99% after 21 days of the experiment. Studies conducted by Lee et al (2016) and by Su et al (2016) also showed complete removal of ammonium nitrogen from sewage by the biofilm of microalgae. According to de Assis et al (2017), in hybrid reactors (using biofilm) the reduction of the concentration of ammonium nitrogen was 79-84%, which was more than in the conventional HRP system (69% of reduction).…”

Section: Changes In the Concentration Of Mineral Forms Of Nitrogen Inmentioning

confidence: 89%

“…Wastewater treatment systems based on microalgae cultivation (phycoremediation) allow not only to obtain an adequate reduction of pollutants in sewage, but also valuable biomass which can be used as a material for the production of biofertilizers, biofuels of the third generation and biogas (Rawat et al, 2011;Abdel-Raouf et al, 2012;Boelee et al, 2012;Su et al, 2016;de Assis et al, 2017). Studies show that microalgae can grow in domestic, municipal, industrial, livestock and agriculture sewage (Abdel-Raouf et al, 2012;Choi and Lee, 2012;Prajapati et al, 2013; Application of microalgae cultivated on pine bark for the treatment of municipal wastewater in cylindrical photobioreactors…”

Section: Introductionmentioning

confidence: 99%

“…A proper solution is the immobilisation of microalgae on a solid substrate (so‐called “biofilm”). The microalgal biofilm system is characterized by a high nutrients removal ratio and also reduces the costs of biomass harvesting compared to microalgae grown in the suspended systems (Boelee et al ., 2011; Su et al ., 2016; Ting et al ., 2017). In addition, the biofilm increases the biomass concentration, the tolerance of microalgae to the change in local environmental conditions and to the effect of toxic substances (microorganisms in the biofilm can be 600‐fold more resistant to heavy metals than free‐swimming cells (Kloc and González, 2012)) and reduces energy consumption due to the lack of mixing biomass with sewage (Tam et al ., 1998; Boelee et al ., 2011; de Assis et al ., 2017).…”

Section: Introductionmentioning

confidence: 99%

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Application of microalgae cultivated on pine bark for the treatment of municipal wastewater in cylindrical photobioreactors

Garbowski

Charazińska

Pulikowski

et al. 2020

Water & Environment J

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The presented study concerns the efficiency of removing nutrients, organic compounds and metal cations from municipal sewage by a cylindrical photobioreactor (PBR) with the biomass of microalgae growing on pine bark. The study was conducted in two cylindrical PBRs fed with municipal wastewater for 42 days. PBRs were internally illuminated with red and blue light at night. The sewage was additionally enriched in CO 2 and CaCO 3. The concentration of NH 4

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The long-term effects of wall attached microalgal biofilm on algae-based wastewater treatment

Cited by 37 publications

References 16 publications

The Effect of Mixed Wastewaters on the Biomass Production and Biochemical Content of Microalgae

The Effect of Mixed Wastewaters on the Biomass Production and Biochemical Content of Microalgae

Co-cultivation of fungal-microalgal strains in biogas slurry and biogas purification under different initial CO2 concentrations

Application of microalgae cultivated on pine bark for the treatment of municipal wastewater in cylindrical photobioreactors

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