The Various Forms of Cow Manure Waste as Adsorbents of Heavy Metals

Abstract

In recent years, the application of cow manure waste as an adsorbent of heavy metals in water and soil has increased. The analysis of the most effective adsorbents from cow manure as materials that can reduce heavy metals, while being low-cost and easy to produce, is important in the agricultural field. This study investigated adsorbents from cow manure, such as compost, biochar and humic acid, and analyzed the capability of the adsorption mechanisms of Cr, Pb and Cd. The experiments were performed as a function of pH, adsorbent dose, initial metal ion concentration, and contact time. To investigate the mechanism of the adsorption process, the Langmuir and Freundlich models were used. The results showed that the optimum conditions of Cr, Cd and Pb ions were achieved by compost, biochar and humic acid with 83–99% removal. An adsorption isotherm model for compost, biochar and humic acid generally followed the Langmuir and Freundlich models. This study ranks the different forms of cow manure waste in the following order based on their ease of production, high adsorption capacity, and low cost: biochar > compost > humic acid.

Effectiveness of Liquid Organic Fertilizer On N-Total of Soil, N, P, K Uptake, and Yields of Peanut (Arachis hypogaea L.) In Inceptisols Jatinangor

“…The availability of nutrients in the soil influences plant nutrient uptake [6]. Soil and organic material were the sources of nutrition for plants [9,10]. Where the process of releasing nutrients into the soil as additional nutrients such as macro nutrients require the decomposition of organic waste previously [11].…”

“…Soil and organic material were the sources of nutrition for plants [9,10]. Where the process of releasing nutrients into the soil as additional nutrients such as macro nutrients require the decomposition of organic waste previously [11]. Beside that, where the suitability of the land for certain types of plants is concerned, the amount of soil fertility utilized as a medium for growing plants becomes important [12].…”

Rapid and Effective Lead Elimination Using Cow Manure Derived Biochar: Balance between Inherent Phosphorus Release and Pollutants Immobilization

“…Furthermore, the cow manure derived biochar shows more efficient adsorption of heavy metals than wood-derived biochar, as the PO 4 3− and CO 3 2− contained and functional groups improve the adsorption via complexation and precipitation [ 16 ]. Thus, cow manure derived biochar is widely used to adsorb heavy metals [ 17 , 18 ]. Compared with compost, the cow manure derived biochar offers a lower cost, easier preparation, and better adsorption [ 18 ].…”

“…Thus, cow manure derived biochar is widely used to adsorb heavy metals [ 17 , 18 ]. Compared with compost, the cow manure derived biochar offers a lower cost, easier preparation, and better adsorption [ 18 ]. Modifications such as KH 2 PO 4 or NaOH can significantly improve adsorption [ 19 , 20 ].…”

An updated review on how biochar may possess potential in soil ARGs control on aspects of source, fate and elimination

“…Bashir et al (2017),Mulyani et al (2022),Zhao et al (2020),Zheng et al (2021) Struvite-humic acid loaded biochar/bentoniteZntetT, tetG, tetQ, tetX, tetW, sulI, sulII, ermB The absorbed humic acid on biochar could contribute to the immobilization of Zn (II) by forming humic acid-metal complex Bio-Zn content was significantly and strongly positive correlated with some target ARGs like tetT, ermB and especially intlI. After biochar amendment, the selection pressure and content of bio-Zn decreased with the immobilization of Zn (II), which might contribute to the mitigation of the spread and abundance of ARGsLi et al (2019a, b) Composted pig manure, coconut shell biochar, and their combinawith HM cations, and the surface metals exchange cation with alkali metals.…”