Functional fungal pellets self-immobilized by mycelium fragments of Irpex lacteus WRF-IL for efficient degradation of sulfamethazine as the sole carbon source

Structure-activity relationship of self-immobilized mycelial pellets and their functions in wastewater treatment

Mycelial pellets (MPs) represent an emerging class of eco-friendly, self-immobilized bioactive materials characterized by high biological activity, superior porous structure, and unique biocompatibility. Based on structure-activity relationships, this paper reviews MPs' applications, mechanisms, and advantages in wastewater treatment, while updating fundamental theories on their production optimization, structure characteristics, and surface properties. Emphasis is placed on MPs' three principal functions in remediating pollution: biodegradation via high biological activity, adsorption through porous aggregated structure and superior surface features, and bio-carrier role based on the three-dimensional carbonaceous skeleton. Furthermore, the multifunctionality of MPs improves sludge settleability and dewaterability, as well as enhances aerobic granular sludge granulation and structural stability. Future research priorities include scalable low-cost production, mechanical reinforcement strategies, development of engineered strains and composites, and safe disposal of pollutant-laden MPs. This work provides valuable insights into the use of MPs in wastewater treatment and identifies critical directions for advancing MPs technology.

A review on the alternatives to antibiotics and the treatment of antibiotic pollution: Current development and future prospects

Antibiotics, widely used in the fields of medicine, animal husbandry, aquaculture, and agriculture, pose a serious threat to the ecological environment and human health. To prevent antibiotic pollution, efforts have been made in recent years to explore alternative options for antibiotics in animal feed, but the effectiveness of these alternatives in replacing antibiotics is not thoroughly understood due to the variation from case to case. Furthermore, a systematic summary of the specific applications and limitations of antibiotic removal techniques in the environment is crucial for developing effective strategies to address antibiotic contamination. This comprehensive review summarized the current development and potential issues on different types of antibiotic substitutes, such as enzyme preparations, probiotics, and plant extracts. Meanwhile, the existing technologies for antibiotic residue removal were discussed under the scope of application and limitation. The present work aims to highlight the strategy of controlling antibiotics from the source and provide valuable insights for green and efficient antibiotic treatment.