Growth, survival, and heavy metal (Cd and Ni) uptake of spinach(Spinacia oleracea)and fenugreek(Trigonella corniculata)in a biochar-amended sewage-irrigated contaminated soil

2015 ◽  
Vol 178 (2) ◽  
pp. 209-217 ◽  
Author(s):  
Uzma Younis ◽  
Muhammad Farooq Qayyum ◽  
M. Hasnain Raza Shah ◽  
Subhan Danish ◽  
Ahmad Naeem Shahzad ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Spinacia Oleracea ◽  
Ni Uptake ◽  
Heavy Metal Cd

Cultivar-specific differences in heavy metal (Cd, Cr, Cu, Pb, and Zn) concentrations in water spinach (Ipomoea aquatic ‘Forsk’) grown on metal-contaminated soil

2014 ◽  
Vol 386 (1-2) ◽  
pp. 251-262 ◽  
Author(s):  
BaoYan He ◽  
Ling Ling ◽  
LuYin Zhang ◽  
MengRun Li ◽  
QuSheng Li ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Water Spinach ◽  
Ipomoea Aquatic ◽  
Heavy Metal Cd

scholarly journals Uji Kemampuan Tanaman Jarak Pagar (Jatropa curcas) Dalam Meremediasi Tanah Tercemar Logam Berat Kadmium (Cd)

2017 ◽  
Vol 2 (2) ◽  
pp. 30-34
Author(s):  
Surahmaida . ◽  
Sarwoko Mangkoedihardjo
Keyword(s):  
Heavy Metal ◽  
Leaf Area ◽  
Plant Height ◽  
Contaminated Soil ◽  
Jatropha Curcas ◽  
Metal Accumulation ◽  
Rapid Development ◽  
Ornamental Plants ◽  
Surrounding Environment ◽  
Heavy Metal Cd

ABSTRAKPerkembangan industri yang semakin pesat secara tidak langsung menimbulkan pencemaran lingkungan di sekitarnya. Salah satunya adalah pencemaran tanah oleh logam berat yang dihasilkan dari hasil industri tersebut. Metode yang dapat digunakan untuk meremediasi lahan tercemar yaitu dengan menggunakan tanaman (fitoremediasi). Jarak pagar (Jatropha curcas) merupakan tanaman tahunan dari famili Euphorbiaceae yang umumnya digunakan sebagai tanaman penghasil biodiesel, tanaman pembatas pagar dan tanaman hias. Tujuan dari penelitian ini untuk mengkaji kemampuan jarak pagar dalam meremediasi Cd: untuk mengetahui pengaruh Cd terhadap tinggi tanaman dan luas daun; dan nilai persentase reduksi tanah yang tercemar Cd; dan nilai persentase akumulasi logam Cd dalam jarak pagar. Penelitian eksperimental ini dilakukan dengan menggunakantanah taman; limbah Cd buatan dengan konsentrasi 5 ppm, 15 ppm, 25 ppm, 35 ppm dan 45 ppm; dan Spektrofotometer Serapan Atom (AAS) untuk pengujian logam berat Cd pada tanaman jarak pagar. Data yangdiperoleh dari penelitian ini menunjukkan bahwa Cd berpengaruh terhadap tinggi tanaman dan luas daun; nilai persentase reduksi tanah tercemar Cd yaitu sebesar 76-91%; jarak pagar mempunyai kemampuan dalam mengakumulasi Cd; dan nilai persentase akumulasi logam Cd dalam jarak pagar adalah 46-125%.Kata kunci: Logam Berat Cd, Jarak pagar (Jatropha curcas), FitoremediasiABSTRACTThe rapid development of the industry indirectly lead to pollution of the surrounding environment. One of them is the contamination of the soil by the heavy metals resulting from the industry. The method that can be used to remediate contaminated land is by using plants (called phytoremediation). Jatropha curcas plant is an annual plant of the Euphorbiaceae family that is commonly used as a biodiesel producing plant, fence limiting plants and as ornamental plants. The purpose of this research is to assessing the ability of Jatropha curcas in remediating Cd; to know the effect of Cd on plant height and leaf area; and the percentage value of Cd contaminated soil reduction; and the percentage value of Cd metal accumulation in Jatropha curcas. This experimental study was conducted using garden land; artificial Cd waste with concentration 5 ppm, 15 ppm, 25 ppm, 35 ppm and 45 ppm; and Atomic Absorption Spectrophotometer (AAS) for testing of heavy metal Cd onJatropha curcas. Data obtained from this research indicate that Cd effect on plant height and leaf area; the percentage value of contaminated soil reduction Cd is equal to 76-91%; Jatropha curcas has the ability toaccumulate Cd; and the percentage value of Cd metal accumulation in Jatropha curcas is 46-125 %.Key Words: : Heavy Metal Cd, Jatropha curcas Plant, Phytoremediation  

Impacts of pH and Electrolyte on Cadmium Desorption Characteristics in Contaminated Soil

2013 ◽  
Vol 726-731 ◽  
pp. 387-391
Author(s):  
Su Chen ◽  
Lei Chao ◽  
Li Na Sun ◽  
Tie Heng Sun
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Desorption Rate ◽  
Desorption Experiment ◽  
L1 And L2 ◽  
Variation Trends ◽  
Acidic Region ◽  
Heavy Metal Cd

In this paper, two kinds of different pollution degree soils denoted as L1 and L2 were used as test soils. Desorption experiment was carried out to study the impacts of pH and electrolyte on desorption characteristics of cadmium (Cd) in soils. The results showed that the variation trends of Cd desorption rates with increase in pH were similar. In other words, it decreased as pH increased. In acidic region, desorption rate of heavy metal Cd decreased rapidly as pH increased. When pH = 4, Cd desorption rate was largest; in neutral and alkaline regions (pH = 7-10), desorption rate of heavy metal Cd decreased slowly as pH increases. Cd desorption behavior was closely related to type and concentration of electrolyte. Under the same concentration, Cd desorption capabilities of three electrolytes in soils L1 and L2 could be expressed in following order: CaCl2> Ca (NO3)2> NaCl.

Effects of clonal integration on growth of stoloniferous herb Centella asiatica suffering from heterogeneous heavy metal Cd2+ stress

2011 ◽  
Vol 35 (8) ◽  
pp. 864-871 ◽  
Author(s):  
Fu-Jun LIU ◽  
Yun-Xiang LI ◽  
Yong-Mei LIAO ◽  
Jin-Song CHEN ◽  
Qiu-Mei QUAN ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Centella Asiatica ◽  
Clonal Integration ◽  
Heavy Metal Cd

scholarly journals Application of nanoscale zero-valent iron in hexavalent chromium-contaminated soil: A review

2020 ◽  
Vol 9 (1) ◽  
pp. 736-750
Author(s):  
Xilu Chen ◽  
Xiaomin Li ◽  
Dandan Xu ◽  
Weichun Yang ◽  
Shaoyuan Bai
Keyword(s):  
Heavy Metal ◽  
Hexavalent Chromium ◽  
Contaminated Soil ◽  
Zero Valent Iron ◽  
Toxic Heavy Metal ◽  
Factors Affecting ◽  
Metal Pollutants ◽  
Nanoscale Zero Valent Iron ◽  
Low Toxicity ◽  
Heavy Metal Pollutants

AbstractChromium (Cr) is a common toxic heavy metal that is widely used in all kinds of industries, causing a series of environmental problems. Nanoscale zero- valent iron (nZVI) is considered to be an ideal remediation material for contaminated soil, especially for heavy metal pollutants. As a material of low toxicity and good activity, nZVI has been widely applied in the in situ remediation of soil hexavalent chromium (Cr(vi)) with mobility and toxicity in recent years. In this paper, some current technologies for the preparation of nZVI are summarized and the remediation mechanism of Cr(vi)-contaminated soil is proposed. Five classified modified nZVI materials are introduced and their remediation processes in Cr(vi)-contaminated soil are summarized. Key factors affecting the remediation of Cr(vi)-contaminated soil by nZVI are studied. Interaction mechanisms between nZVI-based materials and Cr(vi) are explored. This study provides a comprehensive review of the nZVI materials for the remediation of Cr(vi)-contaminated soil, which is conducive to reducing soil pollution.

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