Synergic effects of biochar and polyacrylamide amendments on the mechanical properties of silt loam soil under coastal reclamation in China

Wang, Hongde; She, Dongli; Fei, Yuanhang; Tang, Shengqiang

doi:10.1016/j.catena.2019.104152

Cited by 28 publications

(17 citation statements)

References 46 publications

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“…Although the effect of the Na-PAA used in this paper on the increase in the soil liquid limit is not as strong as that of locust bean gum in the literature [ 56 ], the economic benefits of the Na-PAA used in this paper are lower than those of locust bean gum (as shown in Table 7 ). The clinoptilolite and Na-PAA used in this paper also have good W Ld enhancement effects and are better than biochar [ 58 ], attapulgite [ 15 ], and straw ash [ 38 ]. Therefore, clinoptilolite and Na-PAA have a good enhancing effect on W Ld and w omcd , and show that the CCC modified by both of these materials has good water-holding capacity and is highly economical.…”

Section: Discussionmentioning

confidence: 99%

Water-Holding Properties of Clinoptilolite/Sodium Polyacrylate-Modified Compacted Clay Cover of Tailing Pond

Sun

Ding

et al. 2022

IJERPH

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Clinoptilolite and sodium polyacrylate (Na-PAA) were used as water-retaining agents to improve the water-holding capacity of compacted clay cover (CCC). The optimum moisture content and Atterberg limits of the CCC modified by clinoptilolite and Na-PAA were studied. The soil–water characteristic curve (SWCC) of the CCC modified by clinoptilolite and Na-PAA was studied. The mesostructure of the CCC was analyzed by polarized light microscopy. The test results show that: (1) the optimum moisture content and liquid limit of the CCC modified by clinoptilolite and Na-PAA increased, while the maximum dry density decreased; (2) the SWCC of the CCC modified by clinoptilolite and Na-PAA shifts to the upper right, and the volume moisture content of modified CCC is higher than that of unmodified CCC under the same matrix suction; (3) the air−entry value (AEV) of the clinoptilolite-modified CCC increased by 45.92%, and the Na-PAA increased the AEV of the clinoptilolite-modified CCC by about two times; and (4) the flocculation structure and porosity of modified CCC decreased, and the porosity was distributed uniformly.

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Section: Discussionmentioning

confidence: 99%

Water-Holding Properties of Clinoptilolite/Sodium Polyacrylate-Modified Compacted Clay Cover of Tailing Pond

Sun

Ding

et al. 2022

IJERPH

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“…(2018) on vetiver. Moreover, the composition of oil did not show any dramatic change other than increasing the content of the active constituents, improving the quality of the EO, by the addition of soil‐amendment (PAM; Dethier et al., 1997; Wang et al., 2019). Furthermore, it could be concluded from the GC‐MS chromatograms that the content of carvone increased at the expense of limonene.…”

Section: Discussionmentioning

confidence: 99%

“…Polyacrylamide (PAM) is one such soil‐conditioner (synthetic) that can facilitate soil moisture conservation (Tumsavas & Kara, 2011). PAM, a water‐soluble polymer, is a polymerization product of acrylamide, often required in small quantities to obtain the desired effects in contrast to the other types of soil‐amendments applied in bulk similar to that of fertilizers (Barvenik, 1994; Sojka et al., 2007; Wang et al., 2019). Green & Stott, 1999 have earlier reported that the application of PAM improves various physical properties of soil like crusting, surface sealing, erosion, including others.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, PAM improves the soil's physical properties and results in enhancing root penetration, infiltration, aeration, erosion, and drainage (Green & Stott, 1999; Rubio et al., 1992; Sojka et al., 2007; Wu et al., 2012). Various reports show that the application of PAM has decreased the rate of nutrient loss due to leaching and water runoff as it helps in slow release of nutrients into the soil (Elbarbary et al., 2017; Guilherme et al., 2015; Rashidzadeh & Olad, 2014; Wang et al., 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Various reports show that the application of PAM has decreased the rate of nutrient loss due to leaching and water runoff as it helps in slow release of nutrients into the soil (Elbarbary et al, 2017;Guilherme et al, 2015;Rashidzadeh & Olad, 2014;Wang et al, 2019).…”

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confidence: 99%

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Response of Mentha spicata L. to the reclamation of soil by the application of polyacrylamide (PAM): A soil‐conditioner

Sadiq

Khan

Shabbir

et al. 2021

Food Processing Preservation

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Irrigation of agricultural lands is an essential factor for reducing the peril allied with the production of plants, and retaining the applied nutrients to the soil adds to the challenge (Bucks et al., 1990). Thus, soil moisture content is a crucial factor in obtaining optimum growth of plants as it directly influences the water potential of cells. Imbalance in soil moisture can lead to a poor performance of the plants, thus leading to a reduction in crop productivity. Various soil amendments help us to maintain the proper soil moisture by amending the soil's physical properties and inducing soil preconditioning (Green & Stott, 1999;

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Soilless remediation of the fine carbonate‐rich gold‐copper mine tailings

Xia,

Bi,

Cui

et al. 2023

CLEAN Soil Air Water

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Soil remediation with minimum amendments is a good strategy for tailings disposal. Carbonate‐rich gold‐copper mine tailings occurring alongside the Yangzi River, China, were employed as the objective in this study. They showed the characteristics of fine particles and alkaline pH with high density and low nutrition. The amendments including bacterial fertilizer (BF), polymer, peat, straw, and compound fertilizer (CF) were used for soilless remediation on the tailings. Soil quality index (SQI) involved in tailing properties and growth characteristics of ryegrass was used to optimize the combination of amendments. The results showed that the optimum amendment combination was 0.2% BF + 0.6% CF + 0.2% polymer + 10% peat and 2% straw. Tailing nutrients such as soil organic matter (5.56%), available nitrogen (93.6 mg kg−1), available phosphorus (51.7 mg kg−1), available potassium (711 mg kg−1), and ryegrass exhibited the highest germination rate and biomass level under the optimal improvement conditions. Additional environmental assessments revealed that soilless treatment of the tailings helped to convert Cu, Zn, and As into residual forms. These findings show a good strategy for tailings soil improvement and provide a promising perspective of the soilless remediation for fine carbonate‐rich metal tailings.

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Synergic effects of biochar and polyacrylamide amendments on the mechanical properties of silt loam soil under coastal reclamation in China

Cited by 28 publications

References 46 publications

Water-Holding Properties of Clinoptilolite/Sodium Polyacrylate-Modified Compacted Clay Cover of Tailing Pond

Water-Holding Properties of Clinoptilolite/Sodium Polyacrylate-Modified Compacted Clay Cover of Tailing Pond

Response of Mentha spicata L. to the reclamation of soil by the application of polyacrylamide (PAM): A soil‐conditioner

Soilless remediation of the fine carbonate‐rich gold‐copper mine tailings

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