PMID- 35870524
OWN - NLM
STAT- MEDLINE
DCOM- 20221229
LR  - 20221229
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 309
DP  - 2022 Sep 15
TI  - Effects of composite environmental materials on the passivation and biochemical 
      effectiveness of Pb and Cd in soil: Analyses at the ex-planta of the Pak-choi 
      root and leave.
PG  - 119812
LID - S0269-7491(22)01026-0 [pii]
LID - 10.1016/j.envpol.2022.119812 [doi]
AB  - Passivation of soil heavy metals using environmental materials is an important 
      method or important in situ remediation measure. There are more studies on 
      inorganic environmental materials for heavy metal passivation, but not enough 
      studies on organic and their composite environmental materials with inorganic 
      ones. In order to reveal the passivation effect of coal-based ammoniated humic 
      acid (CAHA), biochemical humic acid (BHA), biochar (BC) and other organic types 
      and inorganic environmental materials such as zeolites (ZL) on soil heavy metals 
      and their biological effectiveness. The microstructures of these materials were 
      analyzed by Scanning electron microscope (SEM). The main components of the 
      environmental materials were analyzed by Energy dispersive spectrometer (EDS), 
      Fourier transforms infrared spectroscopy (FT-IR) and X-ray diffraction spectrum 
      (XRD) to elucidate the mechanism of passivation of heavy metals in soil by these 
      environmental materials. The study was conducted to investigate the effects of 
      different types of environmental materials and their combinations on the 
      passivation effect and biological effectiveness of Pb and Cd complex 
      contamination in soil by means of soil incubation and pot experiments using 
      single-factor and multifactor multilevel orthogonal experimental designs. Soil 
      incubation experiments proved that the effective state of soil Pb and Cd in T(7) 
      was reduced by 13.40% and 11.07%, respectively. The extreme difference analysis 
      determined the optimized formulation of soil lead and cadmium passivation as BHA: 
      CAHA: BC: ZL = 3.5:5:20:10. The pot experiment proved that the application of 
      composite environmental materials led to the reduction of lead and cadmium 
      content and increase of biomass of Pak-choi, and the optimal dosage of optimized 
      composite environmental materials was 23.1 g/kg.
CI  - Copyright (c) 2022 Elsevier Ltd. All rights reserved.
FAU - Wang, An
AU  - Wang A
AD  - School of Chemical and Environmental Engineering, China University of Mining and 
      Technology-Beijing, Beijing, 100083, China.
FAU - Wang, Yao
AU  - Wang Y
AD  - School of Chemical and Environmental Engineering, China University of Mining and 
      Technology-Beijing, Beijing, 100083, China.
FAU - Zhao, Peng
AU  - Zhao P
AD  - School of Chemical and Environmental Engineering, China University of Mining and 
      Technology-Beijing, Beijing, 100083, China.
FAU - Huang, Zhanbin
AU  - Huang Z
AD  - School of Chemical and Environmental Engineering, China University of Mining and 
      Technology-Beijing, Beijing, 100083, China. Electronic address: 
      zbhuang2003@163.com.
LA  - eng
PT  - Journal Article
DEP - 20220720
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 00BH33GNGH (Cadmium)
RN  - 16291-96-6 (Charcoal)
RN  - 0 (Coal)
RN  - 0 (Humic Substances)
RN  - 2P299V784P (Lead)
RN  - 0 (Metals, Heavy)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - 1318-02-1 (Zeolites)
SB  - IM
MH  - Cadmium/analysis
MH  - Charcoal
MH  - Coal/analysis
MH  - Humic Substances/analysis
MH  - Lead/analysis
MH  - *Metals, Heavy/analysis
MH  - Soil
MH  - *Soil Pollutants/analysis
MH  - Spectroscopy, Fourier Transform Infrared
MH  - *Zeolites
OTO - NOTNLM
OT  - Biochemical effectiveness
OT  - Environmental materials
OT  - Humic acid
OT  - Pak-choi
OT  - Passivation
EDAT- 2022/07/24 06:00
MHDA- 2022/08/17 06:00
CRDT- 2022/07/23 19:23
PHST- 2022/04/17 00:00 [received]
PHST- 2022/06/09 00:00 [revised]
PHST- 2022/07/16 00:00 [accepted]
PHST- 2022/07/24 06:00 [pubmed]
PHST- 2022/08/17 06:00 [medline]
PHST- 2022/07/23 19:23 [entrez]
AID - S0269-7491(22)01026-0 [pii]
AID - 10.1016/j.envpol.2022.119812 [doi]
PST - ppublish
SO  - Environ Pollut. 2022 Sep 15;309:119812. doi: 10.1016/j.envpol.2022.119812. Epub 
      2022 Jul 20.