Modified mussel shell powder for microalgae immobilization to remove N and P from eutrophic wastewater

Ji, Lili; Song, Wen‐Dong; Wei, Danyi; Jiang, Dongjiao; Cai, Lu; Wang, Yaning; Guo, Jingjie; Zhang, Hailong

doi:10.1016/j.biortech.2019.03.112

Cited by 34 publications

(9 citation statements)

References 45 publications

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“…Some works (Lomas & Glibert 2000, Yang et al 2014 highlight diatoms for their ability to remove nitrates, also remove phosphorus at temperatures ranging 15-25°C (Ji et al 2019); however, this was not observed in this work. During culture, at 15-25°C, microalgae and bacteria interact in processes that improve the water quality (Delgadillo-Mirquez et al 2016), explaining our results.…”

Section: Discussioncontrasting

confidence: 65%

Microalgae and probiotic bacteria as biofloc inducers in a hyper-intensive Pacific white shrimp (Penaeus vannamei) culture

Jiménez-Ordaz¹,

Cadena-Roa²,

Pacheco-Vega³

et al. 2021

Lat. Am. J. Aquat. Res.

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Biofloc systems in Pacific white shrimp (Penaeus vannamei) culture generate floccules that remove wastes, and hence, biofloc formation is promoted for shrimp production. This study evaluated the induction of biofloc formation using microalgae and probiotic bacteria in hyper-intensive Pacific white shrimp culture. The experiment was performed for six weeks in tanks (28,000 L each) stocked 350 ind m-3 and weight of 1400 ± 30 mg. Three treatments were assessed: 1) with two diatoms: Grammatophora sp. and Navicula sp., 2) with Navicula sp., and 3) without diatoms. All treatments were added with Schizochytrium sp. and Lactobacillus fermentum TD19. The following parameters were monitored during culture: ammonium, nitrites, nitrates, environmental variables, floccules volume, microorganism presence, the bromatological composition of biofloc, and growth performance parameters of P. vannamei. Our results indicated that the three induced biofloc presented a similar volume (8.34 ± 4.8 mL L-1) and ammonium concentration (<1.0 mg L-1). Treatment 1 generated floccules with the highest concentration of ciliates, rotifers, nematodes, lactic acid bacteria, and the lowest concentration of Vibrio spp. (1.2×103 UFC mL-1), evidencing a significant difference in bromatological composition, with the highest protein and lipid values (28.12 ± 0.50 and 22.44 ± 0.80% biofloc dry weight, respectively) and the best feed conversion ratio (0.89). Based on these results, we suggest that Schizochytrium sp., L. fermentum, and two diatoms should be used to induce biofloc in a hyper-intensive culture of P. vannmaei in order to provide a supplementary nutritional intake, which can constitute an advantage to reduce commercial feed rations.

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Section: Discussioncontrasting

confidence: 65%

Microalgae and probiotic bacteria as biofloc inducers in a hyper-intensive Pacific white shrimp (Penaeus vannamei) culture

Jiménez-Ordaz¹,

Cadena-Roa²,

Pacheco-Vega³

et al. 2021

Lat. Am. J. Aquat. Res.

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“…[32][33][34][35][36][37][38] While discarded marine shells derived from mussels, oysters, clams and abalones have been characterized as biological material with multiple utility, few efforts have been made from the freshwater mussels. 41,54 Several studies have shown that shells of marine bivalves and gastropods are more worthy as waste with multiple applications in the eld of biodiesel production, 39,40 waste water treatment, 46,47 soil amelioration, [48][49][50] biosorbent for dye and heavy metal, 45,51,52,54,55 llers and alternative to mortars, 56,57 and as an alternative to the bone materials. 32 In order to judge and qualify the shells of freshwater mussels as a biological material with potential for multiple applications in agriculture and industry, characterization of the shell at the physical and chemical levels is a pre-requisite.…”

Section: Discussionmentioning

confidence: 99%

“…46 A modied mussel shell powder is also used to immobilize microalgae, for removal of nutrients from eutrophic waters. 47 The shells of the mussels are considered as a cheap source of lime and used in mulching the soil 48 that may also induce changes in the pest insect behaviour. 49 Alternatively, the compost bivalve shells can be used, which are more effective than the freshly derived oyster shells.…”

Section: Introductionmentioning

confidence: 99%

An insight into the structure, composition and hardness of a biological material: the shell of freshwater mussels

et al. 2020

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“…Figure 5 shows the FT-IR spectra of USP and OCSP. The USP peaks at 1455, 876, and 713 cm −1 showed obvious absorption peaks, where the absorption peak at 1455 cm −1 was typical for calcite with C–O asymmetric stretching vibration, and the peaks at 876 and 713 cm −1 were aragonite absorption peaks and calcite absorption peaks doped with a small amount of aragonite, respectively; the molecular vibration types corresponded to the CO 3 2− out-of-plane bending vibration and Ca–O in-plane bending vibration, respectively [ 33 , 34 ]. In addition, there were three weak peaks in USP located at 2518, 1795, and 1080 cm −1 , which were O–C–O asymmetric stretching vibration peaks in calcium carbonate, C=O bond [ 35 ], and symmetric stretching vibration in calcite mixed with a small amount of aragonite [ 36 ], respectively.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of Pyrethroids in Water by Calcined Shell Powder: Preparation, Characterization, and Mechanistic Analysis

Tao²,

et al. 2023

Materials

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Pyrethroids are common contaminants in water bodies. In this study, an efficient mussel shell-based adsorbent was prepared, the effects of factors (calcination temperature, calcination time, and sieved particle size) on the pyrethroid adsorption capacity from calcined shell powder were investigated via Box–Behnken design, and the prediction results of the model were verified. By characterizing (scanning electron microscopy, X-ray diffraction, Fourier infrared spectroscopy, and Brunauer–Emmett–Teller measurements) the adsorbent before and after the optimized preparation process, the results showed that calcined shell powder had a loose and porous structure, and the main component of the shell powder under optimized condition was calcium oxide. The adsorption mechanism was also investigated, and the analysis of adsorption data showed that the Langmuir, pseudo second-order, and intra-particle diffusion models were more suitable for describing the adsorption process. The adsorbent had good adsorption potential for pyrethroids, the adsorption capacity of the two pesticides was 1.05 and 1.79 mg/g, and the removal efficiency was over 40 and 70% at the maximum initial concentration, respectively.

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Modified mussel shell powder for microalgae immobilization to remove N and P from eutrophic wastewater

Cited by 34 publications

References 45 publications

Microalgae and probiotic bacteria as biofloc inducers in a hyper-intensive Pacific white shrimp (Penaeus vannamei) culture

Microalgae and probiotic bacteria as biofloc inducers in a hyper-intensive Pacific white shrimp (Penaeus vannamei) culture

An insight into the structure, composition and hardness of a biological material: the shell of freshwater mussels

Adsorption of Pyrethroids in Water by Calcined Shell Powder: Preparation, Characterization, and Mechanistic Analysis

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