Industrial wastewater treatment has become a serious environmental problem due to the rapid progress of economy and industry. Water pollution presence heavy metals (Zn, Cu, Pb, Ni, Cd, Hg, etc.) poses significant health hazard population also exhibits various toxicological manifestations. The article provides an overview most promising effective methods treatment.

New formulations for processing pine wood based on waste vegetable oil using nanoscale magnesium oxide have been studied. As a filler in the composition of impregnating compositions, coniferous flour was used an amount from 1 to 3%, as well nanopowder dosage 0.01 0.1%. Processing with compositions additives allows improve hydrophobic properties surface, reduce its swelling, moisture and water absorption.

В настоящее время в промышленных масштабах освоен выпуск низкомолекулярных полимеров (олигомеров), которые нашли свое применение производстве лакокрасочных материалов, а также композиционных составах различного назначения. Разработаны и исследованы новые составы на основе отходов нефтехимии полистирола для модифицирования древесноволокнистых плит с целью повышения их гидрофобных свойств прочностных показателей. Для модификации использовали состав олигомера, приготовленного из побочных...

Abstract The “hot-cold baths” impregnation of birch wood samples by a number oils (original engine oil, waste motor, spent transmission, corn and sunflower oils) were studied in order to choose base for impregnating composition. Specimens flour from coniferous hardwood species, oak, pine bark used as fillers compositions. Physical-chemical characteristics (absorbed amount impregnated compound, water absorption, swelling tangential radial directions, wetting angle) treated with compositions...

Wood is widely used in various industries. However, the inherent ability of natural wood to absorb water and other disadvantages require its modification with compositions. In work, technology impregnation birch processed vegetable oil, which remains after cooking, has been studied. Impregnated composition was introduced into pre-prepared using “hot-cold baths” method subsequent heat treatment impregnated sunflower oil. The influence main quantitative parameters process on performance...

Разработаны новые составы для обработки природной древесины на основе побочных продуктов производства полибутадиена и метилметакрилата. Используемые приготовления пропиточного состава побочные продукты имели следующий состав, % мас.: 4- винилциклогексен - 36,4; толуол 45,6; тяжелый остаток (тримеры бутадиена другие продукты) 18. Метилметакрилат получали путем деструкции полиметилметакрилата, проводимой при температуре 220 С. В качестве радикального инициатора использовали гидропероксид...

Wood natural structure can be considered as a suitable matrix for modifying with nanoparticles of various chemical nature. The research aims at obtaining woodbased nanocomposite by wood compositions waste vegetable oil and zinc oxide studying the properties this nanocomposite. Silver birch (Betula pendula) samples were chosen study objects. Refined sunflower left after cooking was base developed impregnating compositions; nanosized powder filler modifier. sol-gel method providing narrow...

Abstract The paper reviews the method of creating a new bio-composite material based on birch wood and describes mechanism interaction used motor oil with by infrared spectroscopy involved. It also provides data moisture absorption newly obtained composite. Used has high hydrophobic antiseptic properties. main chemical changes in oils occur as result its oxidation during engine operation under temperature influence. However, spectrum spent is distinguished appearance three peaks: wide peak...

A composition for impregnation of birch and pine wood was developed. The samples 20x20 mm in size 10 length along the fibers realized by “hot-cold bath” method at 120oC 40 min. efficiency impregnating evaluated according to physical parameters: water absorption, swelling tangential radial directions. It found that with spent engine oil (SEO) allows improving antiseptic properties resistance and, hence, decrease absorption these species. To enhance effect hydrophobization wood, inorganic...

The aim of the study was to synthesise a ZnO/silver birch wood (Bétula péndula) nanocomposite and evaluate its physical mechanical properties in comparison with an unmodified natural polymer.Using sol-gel method, we synthesised almost spherical impurity-free zinc oxide nanoparticles predominant particle size about 20 nm. Amorphous hydrated Zn(OH)2 impregnated into material at gel formation stage. It resulted reaction hydroxide decomposition ZnO as nanoreactor.The hydrophobic surface improved...

Currently, natural wood and products based on it are in high demand. The technology of impregnation low-value species the example B. pendula ROTH with an oligomeric material obtained from rubber production waste has been studied. Oligomers a styrene content 10 90% were obtained. In first case, low molecular weight copolymer had 1100-1300, second - 1700-2000. Impregnation was carried out solution oligomer toluene. order to speed up drying process protective coating increase its strength, NF-1...

The development of methods and technologies for the protective treatment wood in order to improve its properties is an urgent task. Existing (the use compounds, coatings paints) have certain disadvantages, such as high cost, possibility changing texture color wood, well toxicity some substances. In this regard, purpose work was establish effectiveness hydrophobization birch (Betula pendula Roth) pine (Pinus sylvestris) with waste vegetable oil test biochar from a carbon sorbent copper ions....

Nanoscale magnetic spinel ferrites are attracting an increased attention as functional materials for catalysis and sorption. Such catalysts sorbents advantageous due to their chemical stability in aggressive media, thermal stability, a large area of specific surface, high saturation magnetization, which allows using them create magnetically controlled materials. This article presents the results synthesis nickel (II) ferrite nanopowder, its characterization, study catalytic sorption...

The aim of the work was to develop and study new compositions for treatment natural wood based on used vegetable oil with addition nanosized silicon oxide obtain a composite improved properties. basis developed impregnating frying oil. Additives nanopowders amorphous crystalline were introduced into at dosage 0.01 0.5%. To modify wood, stable suspension synthesized in sunflower prepared. processing samples carried out by method “hot-cold impregnation”. obtained composites had hydrophobic...

The article examines the role of waste recycling in context sustainable development and its environmental economic benefits. reduction greenhouse gas emissions, consumption natural resources, pollution dependence on petroleum products are analyzed. Economic benefits such as job creation, stimulating innovation developing new markets also considered.

New formulations for processing pine wood based on vegetable oil waste using nanoscale magnesium oxide have been studied. As a filler in the composition of impregnating compositions, coniferous flour was used an amount from 1 to 3%, as well nanopowder dosage 0.01 0.1%. Processing with compositions additives allows improve hydrophobic properties surface, reduce its swelling, moisture and water absorption. The most optimal parameters were obtained samples treated containing 1% flour, 0.01% siccative.

The aim of the work was to develop and study new compositions for treatment natural wood based on used vegetable oil with addition nanosized silicon oxide obtain a composite improved properties. Specimens birch were chosen as objects study. basis developed impregnating frying oil. supplemented additives amorphous crystalline nanopowders at dosage 0.01 0.5%. To modify wood, stable suspension synthesized in sunflower prepared. processing specimens carried out by method "hot-cold impregnation"....

ЛЕСОТЕХНИЧЕСКИЙ ЖУРНАЛНаучный журнал 2021 г.Том 11 № 2 (42)Учредитель -Федеральное государственное бюджетное образовательное учреждение высшего образования «Воронежский государственный лесотехнический университет имени Г

Abstract The work studies the possibility of using 1-vinylnaphthalene for modification and protective treatment birch wood. used in was obtained by method given literature. In order to facilitate introduction into wood cavity, hydrocarbon impregnating solutions were prepared on its basis toluene as a solvent. samples kept 24 hours at temperature 20°C after removing from impregnation baths, removed vacuum. After extracting bulk toluene, subjected heat treatment. It is shown that during...

A technology for the modifying treatment of wood fiber boards (WFB) by a solution petropolymer resin obtained from C9-fraction is considered. The technological process modification WFB included number operations on samples preparation, impregnation in composition and thermal hardening prepared composites. was studied applying an experimental planning method based scheme greek-latin square forth order.