1. Electrochemical reduction
Electrochemical recovery is the removal of pollutants through the recovery reaction at the cathode, which can be divided into direct removal of pollutants and direct removal of pollutants by electrons at the cathode. This method can convert a large number of chlorine-containing organic compounds into low-toxic substances, improve the biodegradability of the product, and recover a large amount of metals. The oxidizing mediators generated by the electrochemical process, such as Ti3+, V2+ and Cr2+, are used to remove pollutants. For example, the indirect reduction of sulfur dioxide can be converted into elemental sulfur.
2. Electrochemical oxidation
Wastewater treatment is an electrochemical anodic oxidation process, which is divided into two categories.
One is direct oxidation, that is, the pollutants are oxidized after losing electrons at the anode, and there are two types of direct electrocatalytic conversion processes. Through electrochemical conversion, toxic substances are converted into non-toxic substances, or non-biocompatible organic substances are converted into biocompatible organic substances (aromatic substances are ring-opened and oxidized to fatty acids, etc.), and further biological treatment is carried out, that is, the organic substances are deeply oxidized to CO2.
Through research, it is found that the oxidation reaction mechanism and products of organic matter on the metal oxide anode are related to the valence state of the metal oxide anode and the type of surface oxide. The formation of high-valent metal oxides is conducive to the selective oxidation of organic matter, while free radicals are conducive to the oxidation and combustion of organic matter to produce CO2. In addition, in the potential region of the oxygen analysis reaction, since high-concentration oxides may be formed on the surface of metal oxides, there are two states of adsorbed hydroxyl radicals and oxygen in high-concentration oxides in the lattice on the anode. The oxidation process on the anode surface is divided into two stages. First, H2O or HOH is released from the solution to the anode to form adsorbed hydrogen radicals.
Shandong Longantai Environmental Protection Sci-tech Co., Ltd., established in 2005, focuses on energy-saving and compliant treatment of industrial wastewater, wastewater recycling and reuse, and wastewater resource and energy recovery. The company provides high-value comprehensive solutions and key equipment. It integrates research and development, manufacturing, process design, project construction, and water services operation. Longantai has strong capabilities and a complete quality system in the R&D and manufacturing of water treatment catalysts, critical water treatment equipment, wastewater resource recovery equipment, and industrial energy recovery equipment.
Longantai company provides high-value-added comprehensive energy-saving and emission reduction solutions in major technological and engineering applications such as industrial wastewater, refractory wastewater, high-salinity wastewater, high-concentration wastewater treatment, energy-saving upgrades for wastewater treatment standards, wastewater recycling and reuse, and water quality improvement for rivers and lakes. These solutions effectively improve resource utilization, reduce enterprise costs, and contribute positively to green, low-carbon, and high-quality development.
Longantai places great emphasis on the role of research and development in its growth. The company currently holds over 50 invention patents, more than 10 utility model patents, 1 design patent, 1 first prize for provincial-level scientific and technological progress, and 1 first prize for scientific and technological progress from the China Environmental Protection Industry Association. Longantai has established industry-academia-research collaborations with several top domestic and international universities and research institutions. Over the years, the company has been recognized with numerous honors, including National High-Tech Enterprise, National "Little Giant" Enterprise for Specialized and New Technology, Provincial Gazelle Enterprise, Provincial Specialized and New Technology Enterprise, Provincial Manufacturing Champion, Provincial Innovative Small and Medium-Sized Enterprise, Hidden Champion Enterprise, Provincial "One Enterprise, One Technology" R&D Center, and Provincial Industrial Design Center.
Longantai is a leading domestic provider of water treatment solutions, a manufacturer of critical water treatment equipment, and a water services operator. The projects it has served have received extensive coverage from numerous mainstream media outlets, including China Environment News, Xinhua News, Phoenix News, Sina, and various provincial TV stations.
Longantai is a collaborative and open platform with a comprehensive innovation system, mature practical technologies, and advanced manufacturing expertise. It brings together a team of passionate, responsible, grateful, and ambitious professionals. As Longantai continues to grow, it is eager to collaborate sincerely with partners worldwide, working together to contribute to the protection of the environment and the pursuit of sustainable development for humanity. With the mission of "developing energy-efficient and resource-sustainable environmental technologies and equipment for our customers," Longantai strives to fulfill its dreams and responsibilities with gratitude. With humility and dedication, the company aims to work alongside friends from all sectors to safeguard our clear waters, blue skies, and peaceful, harmonious homeland.
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