Comparative Study on Lead and Copper Biosorption Using Three Bioproducts from Edible Mushrooms Residues

Abstract

Agricultural waste products can be used as biosorbents for bioremediation once they are low-cost and high-efficient in pollutants removal. Thus, waste products from mushroom farming such as cutting and substrate of Lentinula edodes (popularly known as shiitake) and Agaricus bisporus (also known as champignon) were evaluated as biosorbents for metallic contaminants copper (Cu) and lead (Pb). Shiitake and champignon stalks, and shiitake substrate (medium in which shiitake was cultivated) were dried, grounded, characterized and experimented to remove Cu and Pb from contaminated water. The Sips model was used to establish the adsorption isotherms. Regarding Cu, champignon stalks have the best removal efficiency (43%), followed by substrate and stalks of shiitake (37 and 30%, respectively). Pb removals were similar among three residues (from 72 to 83%), with the champignon stalks standing out. The maximum adsorption capacities (qmax) for Cu in shiitake and champignon stalks were 22.7 and 31.4 mg/g−1, respectively. For Pb, qmax for shiitake and champignon stalks, and shiitake substrate were 130.0, 87.0 and 84.0 mg/g−1, respectively. The surface morphology of the champignon stalks revealed an organized and continuous structure. After an interaction with metals, the stalk of champignon accumulated the metal ions into interstices. Mushroom residues showed a relevant adsorption efficiency, especially for Pb. Mushroom farming waste are a very low-cost and promising alternative for removing toxic heavy metals from aquatic environment.

Fungal assisted bio‐treatment of environmental pollutants with comprehensive emphasis on noxious heavy metals: Recent updates

“…For stalks of shiitake, maximum removal rates were 30% at 20 and 60 min. Copper elimination reached 43% in the first 20 min for stalks of champignon (Castanho et al, 2021).…”

“…Copper elimination reached 43% in the first 20 min for stalks of champignon (Castanho et al, 2021). been performed by Zhang et al (2020) in which they studied its potential for tolerance and removing the heavy metals either individual or multi-metals.…”

Mushroom Quality Related with Various Substrates’ Bioaccumulation and Translocation of Heavy Metals

“…Besides, industrial activities also contribute to heavy metal contamination. The levels of heavy metals in soil can increase due to mining activities by accelerating the bedrock weathering [96]. For instance, gold mining contributes to the Hg in the environment [72], while As, Cd and Fe are produced by the coal mines, which causes serious problems in the soil and negatively affects human health.…”

“…For instance, gold mining contributes to the Hg in the environment [72], while As, Cd and Fe are produced by the coal mines, which causes serious problems in the soil and negatively affects human health. Other than that, the metals will be distributed into the water and surface sediments, resulting in contamination of water sources and the land that are used as plant nutrition sources [96]. Therefore, the plants directly uptake the heavy metals from mining activities, which are then translocated into the food chain.…”

Sustainable Environmental Assessment of Waste-to-Energy Practices: Co-Pyrolysis of Food Waste and Discarded Meal Boxes

“…At the same time, the by-products produced are underutilized. In addition, most MS were directly burned, stacked, or buried, which have not been effectively utilized, causing serious environmental pollution [ 15 , 16 , 17 ].…”