HA solutions with 100 and 1000 mg L –1 were prepared by dissolving a commercial humic acid sodium salt (Sigma-Aldrich) in deionized (DI) water. The solutions were then filtered through 1.2 and 0.22 μm membrane filters (polyvinylidenedifluoride, PVDF, 47 mm diameter, Millipore) to remove any solids, and stored at 4 °C prior to tests.
Membrane fouling remains an obstacle to wide-spread applications of membrane bioreactors (MBRs) for wastewater treatment and reclamation. Herein, we report a simple method to prepare a composite conductive microfiltration (MF) membrane by introducing a stainless steel mesh into a polymeric MF membrane and to effectively control its fouling by applying an external electric field.
Sakamoto et al., 1998), and stainless steel meshes (Yanagida et al., 2005; Ghorbani, 2008). However, using stainless steel meshes coated with TiO2 packed in layers in the water pu-riﬁcation ﬁeld has not been done so far. The production of q OH radicals was detected by a photoluminescence (PL) technique in order to evaluate the performance ...
Oct 05, 2016· Iron(II) sulphate heptahydrated and sulphuric acid were of reagent grade obtained from Acros Organics. Sodium sulphate was of reagent grade purchased from Sigma Aldrich. Solutions were prepared with ultrapure water from a Millipore Milli-Q system (Molsheim, France) with resistivity > 18 MΩ cm. 2.2. Preparation of humic acid solutions
A method of preparing organic acids (fulvic, humic, and ulmic) for use as an electrolyte for producing high ionizations of precious metals (such as silver) which entails leaching out the organic acid from its source, stabilizing the organic acid first with ascorbic acid followed by sodium benzoate, removing cations, and using the organic acid as an electrolyte.
The present invention relates to a botanical repellent composition intended for pest insect control, containing 75 to 92% garlic extract (Allium sativum) and 8 to 25% humic acids and diluents. Preferably, the composition contains 87% aqueous garlic extract and 13% humic acids and water. These percentages provide control effectiveness of more than 70% for the adults, more than 60% for the …
Dec 04, 2019· Biocarbon Meets Carbon—Humic Acid/Graphite Electrodes Formed by Mechanochemistry ... of a sodium salt) is mixed with graphite by a solvent-free mechanochemical method involving ball ... Haan, Germany). A stainless steel cup of 1.5 mL, stainless steel balls with a diameter of 3 mm, a frequency of 30 Hz, and a milling time of 99 min are ...
Mar 11, 2021· Humic Acid is a kind of high polymer heterogeneous aromatic materials contains hydroxyl, carboxyl, phenolic hydroxyl and other active groups with black or brown appearance. It has the functions of chelation, complexing, ion exchange, floc, dispersion and adhesion. It is non-toxic, odorless.
Humic Acid Fertilizer Making Machine, Humic Acid. Alibaba offers 452 humic acid fertilizer making machine products. About 73% of these are granulators, 1% are compost making machines, and 1% are rotary drying equipment. A wide variety of humic acid fertilizer making machine options are available to you, such as free samples. Inquiry
Seki and Suzuki  produced insolubilized humic acid by heating at 330 for 1 h after the pretreatment of ˚C sodium humate with 2 M CaCl 2 solution. Insoluble humic acid was used as an adsorbent for cadmium and lead ions. Kříženecká et al.  prepared five metal humates (iron humate, aluminium humate, zinc humate, calcium
lignite (leonardite) in crop production. 12. Petition Justification Statements: • Why the synthetic substance in necessary: Most oxidized lignite/humic acid products in liquid form are formulated by dissolving the humic acid derivatives. This is generally achieved by increasing the pH (usually between 10-12) through the addition of sodium
Jan 01, 2017· Humic acid is a model compound of sewage sludge that occurs as a result of decomposing organic matter in wastewater. In this study, humic acid gasification was performed at variable subcritical and supercritical water temperatures (325–600 °C), feed concentration (10–25 wt%) and reaction time (30–90 min).High H 2 yield of 0.79 mol/kg was obtained at 600 °C, 15 wt% humic acid …
Mar 01, 2000· The humic substances were extracted from the air-dried samples with 0.1 M KOH (1:20 w/v) at room temperature for 16 h under a N 2 atmosphere and were freed from the suspended material by centrifugation at 7000 × g for 20 min. Humic extracts (50 mL) were transferred into 18000 mol. wt cut-off dialysis tubing (Visking, London) and dialyzed ...
Sodium (Na) as organic 0.19 Sulphur (S) as organic 0.04 Boron (B) as organic 1.00 Copper (Cu) as organic 2.00 Zinc (Zn) as organic 1.00 Humic Acid as organic 3.50 mg/L Manganese (Mn) as organic 12.00 Iron (Fe) as organic 29.00 Cobalt (Co) as organic 0.04 Molybdenum (Mo) as organic 0.50 Neutrog Australia Pty Ltd 288 Mine Road, Kanmantoo
HPSEC analysis of humic acid extracted from parental lignite as detected by RI detector. ... Guard column and a 0.2 μm stainless-steel inlet filter. Flow rate was set to 0.6 ml min-1 while the HPSEC eluent was a 50 mM NaH 2PO 4.H ... One can see that the particle size is an important parameter for the production of humic acids.
Feb 25, 2012· This study investigated the remediation of cadmium-polluted soil using a combination of stainless steel slag and ammonium humate. These remedial agents were added to an artificially polluted garden soil to inhabit cadmium toxicity in soil by changing the physical and chemical properties of soil in a pot experiment. The results showed that the co-application of ammonium humate and stainless ...
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Humic acid (HA) is a biopolymer formed from degraded plants, making it a ubiquitous, renewable, sustainable, and low cost source of biocarbon materials. HA contains abundant functional groups, such as carboxyl-, phenolic/alcoholic hydroxyl-, ketone-, and quinone/hydroquinone (Q/QH2)-groups. The presence of Q/QH2 groups makes HA redox active and, accordingly, HA is a candidate material for ...
Aug 11, 2017· This paper presents a new soil amendment used for immobilization of soil Pb, produced from vinegar residue, stainless steel slag, and weathered coal. The pH value measuring, granulation and adsorption experiments were carried out to determine the optimal composition of soil amendment. Optimizing soil amendment B2 was composed of vinegar residue, weathered coal (humic acid 61.53 …
Steel Grade N20.5% Crystal Ammonium Sulphate, 7783-20-2; ... Humic Acid Organic Fertilizer Production Line; ... Best Price of Sodium Metabisulfite 97%Min Industry Grade White Crystal Powder Tech Grade Sodium Metabisulfite dimethyl ammonium chloride [26062-79-3] Poly (diallyl dimethyl ammonium chloride) Poly (DMDAAC) Pdmdaac ...
Dec 16, 2020· China Humic Acid supplier, Gloves, Nitrile Gloves Manufacturers/ Suppliers - Shaanxin Supply Chain Management Company ... Factory Price Stainless Steel Chain Link Safety Work Gloves Security in Stock ... Fulvic Acid, Humic Acid, Potassium Humate, Sodium Humate, Amino Acid, Oxalic Acid, Sodium Sulphide, Sodium Hydrosulfide, Ammonium Chloride ...
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