The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform

Jibin Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Resistance of black soldier fly (Diptera: Stratiomyidae) larvae to combined heavy metals and potential application in municipal sewage sludge treatment
    Environmental Science and Pollution Research, 2018
    Co-Authors: Minmin Cai, Ruiqi Hu, Shiteng Ma, Longyu Zheng, Ziniu Yu, Ke Zhang, Jibin Zhang
    Abstract:

    Treating municipal sewage sludge (MSS) sustainably and economically in China remains a challenge because of risks associated with the heavy metals it contains. In this study, black solider fly larvae (BSFL) were used for MSS treatment. The resistance of larvae to combined heavy metals and their potential use in conversion of MSS were investigated. The results indicated that seven MSS samples contained large amounts of heavy metals, with the lead and nickel contents of several samples exceeding Chinese national discharge standards. BSFL were highly tolerant to an artificial diet spiked with combined heavy metals. Principal component analysis revealed that high concentrations of lead, nickel, boron, and mercury potentially interfered with larval weight gain, while zinc, copper, chromium, cadmium, and mercury slightly reduced larval survival. The addition of chicken manure and wheat bran as co-substrates improved the conversion process, which was influenced by the nature and amount of added co-substrate and especially the quantity of nitrogen added. With the amended substrate, the BSFL accumulated heavy metals into their bodies but not into extracted larval oil. The heavy metal content of the treatment residue was lower than that considered safe for organic-inorganic Compound Fertilizers standards in China and the harvested larvae could be used as a source of oil for industrial application.

S Shigitani - One of the best experts on this subject based on the ideXlab platform.

Minmin Cai - One of the best experts on this subject based on the ideXlab platform.

  • Resistance of black soldier fly (Diptera: Stratiomyidae) larvae to combined heavy metals and potential application in municipal sewage sludge treatment
    Environmental Science and Pollution Research, 2018
    Co-Authors: Minmin Cai, Ruiqi Hu, Shiteng Ma, Longyu Zheng, Ziniu Yu, Ke Zhang, Jibin Zhang
    Abstract:

    Treating municipal sewage sludge (MSS) sustainably and economically in China remains a challenge because of risks associated with the heavy metals it contains. In this study, black solider fly larvae (BSFL) were used for MSS treatment. The resistance of larvae to combined heavy metals and their potential use in conversion of MSS were investigated. The results indicated that seven MSS samples contained large amounts of heavy metals, with the lead and nickel contents of several samples exceeding Chinese national discharge standards. BSFL were highly tolerant to an artificial diet spiked with combined heavy metals. Principal component analysis revealed that high concentrations of lead, nickel, boron, and mercury potentially interfered with larval weight gain, while zinc, copper, chromium, cadmium, and mercury slightly reduced larval survival. The addition of chicken manure and wheat bran as co-substrates improved the conversion process, which was influenced by the nature and amount of added co-substrate and especially the quantity of nitrogen added. With the amended substrate, the BSFL accumulated heavy metals into their bodies but not into extracted larval oil. The heavy metal content of the treatment residue was lower than that considered safe for organic-inorganic Compound Fertilizers standards in China and the harvested larvae could be used as a source of oil for industrial application.

Donne Scott - One of the best experts on this subject based on the ideXlab platform.

  • Biochar-based fertilizer: Supercharging root membrane potential and biomass yield of rice
    'Elsevier BV', 2020
    Co-Authors: Chew Jinkiat, Zhu Longlong, Nielsen Shaun, Graber, Ellen Ruth, Mitchell, David R.g., Horvat Joseph, Mohammed Mohanad, Liu Minglong, Van Zwieten Lukas, Donne Scott
    Abstract:

    Biochar-based Compound Fertilizers (BCF) and amendments have proven to enhance crop yields and modify soil properties (pH, nutrients, organic matter, structure etc.) and are now in commercial production in China. While there is a good understanding of the changes in soil properties following biochar addition, the interactions within the rhizosphere remain largely unstudied, with benefits to yield observed beyond the changes in soil properties alone. We investigated the rhizosphere interactions following the addition of an activated wheat straw BCF at an application rates of 0.25% (g·g−1 soil), which could potentially explain the increase of plant biomass (by 67%), herbage N (by 40%) and P (by 46%) uptake in the rice plants grown in the BCF-treated soil, compared to the rice plants grown in the soil with conventional fertilizer alone. Examination of the roots revealed that micron and submicron-sized biochar were embedded in the plaque layer. BCF increased soil Eh by 85 mV and increased the potential difference between the rhizosphere soil and the root membrane by 65 mV. This increased potential difference lowered the free energy required for root nutrient accumulation, potentially explaining greater plant nutrient content and biomass. We also demonstrate an increased abundance of plant-growth promoting bacteria and fungi in the rhizosphere. We suggest that the redox properties of the biochar cause major changes in electron status of rhizosphere soils that drive the observed agronomic benefits

  • Biochar-based fertilizer: Supercharging root membrane potential and biomass yield of rice
    'Sociological Research Online', 2020
    Co-Authors: Chew Jinkiat, Zhu Longlong, Nielsen Shaun, Liu Minglong, Van Zwieten Lukas, Graber Ellen, Mitchell, David R. G, Horvat Josip, Mohammed, Mohanad Hazim, Donne Scott
    Abstract:

    2020 The Authors Biochar-based Compound Fertilizers (BCF) and amendments have proven to enhance crop yields and modify soil properties (pH, nutrients, organic matter, structure etc.) and are now in commercial production in China. While there is a good understanding of the changes in soil properties following biochar addition, the interactions within the rhizosphere remain largely unstudied, with benefits to yield observed beyond the changes in soil properties alone. We investigated the rhizosphere interactions following the addition of an activated wheat straw BCF at an application rates of 0.25% (g·g−1 soil), which could potentially explain the increase of plant biomass (by 67%), herbage N (by 40%) and P (by 46%) uptake in the rice plants grown in the BCF-treated soil, compared to the rice plants grown in the soil with conventional fertilizer alone. Examination of the roots revealed that micron and submicron-sized biochar were embedded in the plaque layer. BCF increased soil Eh by 85 mV and increased the potential difference between the rhizosphere soil and the root membrane by 65 mV. This increased potential difference lowered the free energy required for root nutrient accumulation, potentially explaining greater plant nutrient content and biomass. We also demonstrate an increased abundance of plant-growth promoting bacteria and fungi in the rhizosphere. We suggest that the redox properties of the biochar cause major changes in electron status of rhizosphere soils that drive the observed agronomic benefits

T Motobayashi - One of the best experts on this subject based on the ideXlab platform.