Pages 1-320 (October 2025) - ScienceDirect
Using vegetable tannin and polyaluminium chloride as coagulants for dairy wastewater treatment: A comparative study Marciel Dela Justina, Beatriz Rodrigues Bagnolin Muniz, Mariana Mattge Bröring, Valdeci José Costa, Everton Skoronski
Recent studies have compared the performance of tannin and polyaluminium chloride (PAC) in the coagulation of dairy wastewater. The results showed that these coagulants do not have a statistically significant difference (p < 0.05) for TS (total solids, 5,766 mg L −1 ), COD (8,042 mg L −1 ), color (837 mg L −1 Pt/Co) and turbidity (764 NTU
Using vegetable tannin and polyaluminium chloride as
Using vegetable tannin and polyaluminium chloride as coagulants for dairy wastewater treatment: A comparative study. The obtained sludge from the experiments using tannin accounted for higher volatile solids and fixed carbon, and lower ash content when compared to PAC. In conclusion, tannin is a promising alternative for dairy wastewater
Using vegetable tannin and polyaluminium chloride as coagulants for dairy wastewater treatment: A comparative study Article in Journal of Water Process Engineering 25:173-181 · October 2025
Evaluation of a tannin-based coagulant
1. Introduction. Wet stages involved in textile manufacturing generate high volumes of wastewater. Direct or reactive dyeing and rinsing processes, for instance, generate 113–151 m 3 of wastewater per ton of product [].These effluents contain salts, acids, bases, additives and unfixed dyes [2,3].The seasonality and the complex nature of the wastewater, together with the non-biodegradability
A tannin based natural flocculent (Tanfloc) along with ferric chloride was used for pre-treatment of domestic wastewater using jar-test. It was able to achieve reduction in turbidity, COD, and BOD
Flocculation of Microcystis aeruginosa Using Modified
To flocculate the cyanobacterium Microcystis aeruginosa from water, larch tannin, a natural polymer, was modified by Mannich reaction to obtain a flocculant, named A-TN, which was then quaternized to yield another flocculant, named Q-TN. A-TN and Q-TN were characterized by Fourier transform infrared spectra (FTIR) and zeta potential analysis. The effects of the flocculation parameters, e.g
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Electrocoagulation applications for industrial wastewaters
Cost-effective methods are required to treat a wide range of wastewater pollutants in a diverse range of conditions. As compared with traditional treatment methods, electrocoagulation provides a relatively compact and robust treatment alternative in which sacrificial metal anodes initiate electrochemical reactions that provide active metal cations for coagulation and flocculation.
Meanwhile, 99 % colour removal could be achieved using MgCl2with concentration of 4,000 mg/L and pH 10.4, whereas 100% colour removal could be achieved using PAC with concentration of 2,000 mg/L
Potential of using plant extracts for purification
Potential of using plant extracts for purification of Shallow well water in Malawi Article in Physics and Chemistry of the Earth Parts A/B/C 34(13):799-805 · December 2009 with 754 Reads
Arctium lappa L. (Asteraceae family), commonly greater burdock, is a biennial species found across most of tEurope, Asia and also America. The root part, Bardanae radix, is used as a herbal medicine, but is also used as a vegetable in Eastern Asian regions (similar to potatoes) due to its nutritional value [], the high content of carbohydrates (69%) including inulin (27-50%) and mucilage added
- Which polymers are used in oil fields?
- Polymers, such as partially hydrolyzed polyacrylamide (HPAM), are widely used in oil fields to enhance or improve the recovery of crude oil from the reservoirs. It works by increasing the viscosity of the injected water, thus improving its mobility and oil recovery.
- 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 is anionic polyacrylamide (Apam)?
- 1. Introduction Anionic polyacrylamide (APAM) is a kind of organic high-molecular polymer with high hydrophilicity and viscosity, which is easily dissolved in water [ , , ].
- Can anionic polyacrylamide be used in water treatment?
- What's more, the authors discussed the application status of anionic polyacrylamide in water treatment. Based on these reviews, future research perspectives relating to its synthesis and application were proposed. This review summarizes the synthesis methods for anionic polyacrylamide.
