Comprehensive Combustion Performances of Water Hyacinth and Pistia stratiotes Pellet Fuels

Abstract

For efficient combustion of aquatic biomass, the effects of heating rate on the combustion and dynamic characteristics of two typical aquatic species (water hyacinth, Pistia stratiotes), and the effects of temperature and additives on ash K and Cl concentrations are studied. The two types of pellets have ignition temperatures of 252.7 and 250.3 °C, respectively. At a heating rate of 10 °C min−1, where combustion is most stable, the comprehensive combustion efficiencies reach their maximum at 4.7 × 10−6 and 2.2 × 10−6 mg2min−1°C−2, respectively. The K and Cl concentrations in the ash decrease steadily with increasing temperature, falling to 10.3% and 0.41% for water hyacinth and 11.1% and 1.85% for P. stratiotes, respectively. X‐ray diffraction (XRD)shows that abundant Ca minerals form in the ash after the addition of CaO, which inhibit KCl formation, and K and Al silicates form in the ash after the addition of kaoline, which reserve K in the ash. These findings provide a starting point for the development of efficient aquatic biomass combustion.

Water hyacinth as a green and sustainable material for carbon aerogel electrodes utilized in membrane capacitive deionization

“…Undoubtedly, the presence of WH imposes negative impacts on the development of aquaculture, tourism, and transportation. Despite that fact, water hyacinth can be converted into fertilizers, compost manure, feed for animals and fish, materials for papermaking and handicraft products, [22][23][24] as well as adsorbents, [25,26] biofuels (ethanol, methane, and biogas), [27][28][29][30] and soil additives. Additionally, water hyacinth contains a wealth of cellulose (25%), hemicellulose (33%), and lignin (10%) in the structural framework, making it a great potential biomass source for various applications.…”