Production of biodiesel and its wastewater treatment
The treatment of biodiesel wastewater using adsorption has been conducted by Pitakpoolsil and Hunsom (2013). In their investigation, commercial chitosan flakes were used as adsorbent and several operating parameters were varied, including adsorption time (0.5–5 h), initial wastewater pH (2–8), adsorbent dosage (1.5–5.5 g/L), and mixing
The effect of varying the adsorption time (0.5–5 h), initial wastewater pH (2–8), dosage of adsorbent (1.5–5.5 g/L) and mixing rate (120–350 rpm) on the adsorption capacity of pollutants, measured in terms of biological oxygen demand (BOD), chemical oxygen demand (COD) and oil & grease levels, was explored by univariate analysis.
Adsorption of pollutants from biodiesel wastewater using
The chemical and physical properties of the fresh biodiesel wastewater and that after this pre-treatment are summarized in Table 1.For the adsorption stage, the pH of the aqueous wastewater phase was adjusted to be within the preferred range (pH 2–8) by the addition of NaOH (1 M, Earth Cheme Lab., Thailand).
Pitakpoolsil W., Hunsom M. (2014), ‘Treatment of Biodiesel Wastewater by Adsorption with Commercial Chitosan Flakes: Parameter Optimization and Process Kinetics’, Journal of Environmental
The wastewater treatment in the biodiesel production with
A typical biodiesel production process based on alkali-transesterification of oily feedstocks is shown in Fig. 1.The main process steps are as follows: transesterification reaction, the separation of the ester phase (crude biodiesel) from the methanol/glycerol phase, wet washing of the ester phase, the separation of biodiesel from wastewater and drying of biodiesel.
The integrated treatment process used in this study consisted of three consecutive steps; acidification, electrochemical oxidation and adsorption using chitosan as an adsorbent. The electrochemical oxidation process with IrO2-Ta2O5/Ti anodes was applied to treat biodiesel wastewater.
Treatment of Biodiesel Wastewater by Combined
(2013). Treatment of Biodiesel Wastewater by Combined Electroflotation and Electrooxidation Processes. Separation Science and Technology: Vol. 48, No. 13, pp. 2073-2079.
Publications. María Teresa Olguín, Shuguang Deng “Ce-Fe-modified zeolite-rich tuff to remove Ba2+-like 226Ra2+ in presence of As(V) and F- from aqueous media as pollutants of drinking water” J Hazardous Materials, 302, 341-350 (2016). Jun Wang, Rajamani Krishna, Jiangfeng Yang, and Shuguang Deng “Hydroquinone and Quinone-Grafted Porous Carbons for Highly Selective CO2 Capture from Flue
Algae Biofuels Production Processes, Carbon Dioxide
used: chemical adsorption by zeolite, activate carbon, amine adsorbents and possible coupling with wastewater treatment [5]. Biofuels The principal biofuels are bioethanol, biodiesel, bio-hydrogen, and Parra-Saldivar R. Algae Biofuels Production Processes, Carbon Dioxide Fixation
Going green: chemical wastewater treatment. Share. Adsorption, on the other hand, is an example of a process that straddles both physical and chemical processes. MB3600-CH30 is a laboratory FT-NIR analyser for biodiesel applications suitable for production optimisation and product quality assessment.
wastewater | BioEnergy Consult
This wastewater cannot be sent to ordinary wastewater treatment systems, thus, safe disposal of this waste is of serious environmental concern. Moreover, due to its complex compounds, olive processing waste (OPW) is not easily biodegradable and needs to be detoxified before it can properly be used in agricultural and other industrial processes.
Contamination of natural groundwater by arsenic (As) is a serious problem that appears in some areas of Northern Central Mexico (NCM). In this research, As was removed from NCM wells groundwater by the electrocoagulation (EC) technique. Laboratory-scale arsenic electroremoval experiments were carried out at continuous flow rates between 0.25 and 1.00 L min<sup>−1</sup
- Can cationic polyacrylamide be used in oilfield wastewater treatment?
- Author to whom correspondence should be addressed. Cationic polyacrylamide (CPAM) solid particle is one of the most commonly used organic polymer flocculants in oilfield wastewater treatment, but it poses some problems, such as a slow dissolution rate and an easy formation into a “fish-eye” in the process of diluting into aqueous solution.
- What are the product types for polyacrylamides?
- The product types for polyacrylamides are solutions, liquids (emulsion or dispersion), and dry powders. The forms each have their own set of advantages and disadvantages as will be discussed in the following. 34.2.5.1. Aqueous solution polyacrylamides
- What is nonionic polyacrylamide?
- Nonionic polyacrylamides Nonionic polyacrylamides represent the smallest group of acrylamide-based polymers, representing about 25% of the total polyacrylamide market. Nonionic polyacrylamide is somewhat misleading since in the manufacture of acrylamide, regardless of the route, some degree of hydrolysis of acrylamide occurs.
- What is a high molecular weight nonionic polyacrylamide?
- High-molecular-weight nonionic polyacrylamides are routinely used in the mineral processing industries as thickeners and flocculants , , . 34.2.5. Polyacrylamide product forms The product types for polyacrylamides are solutions, liquids (emulsion or dispersion), and dry powders.
