Solutions

The industrial park sewage treatment plant receives production drainage from various upstream chemical companies. The water quality composition is complex and the wastewater has high chromaticity; the biodegradability is poor and biodegradation is difficult, and all of the wastewater is discharged after primary pretreatment and secondary biochemical treatment from upstream chemical companies. Most of the discharged wastewater contains residual stubborn pollutants that are difficult to biodegrade, which increases the difficulty of biodegradation; the water quality is diverse, which has a strong impact on the sewage plant treatment system; the capacity of the sewage plant's biochemical treatment unit is limited, and it is difficult to meet the emission standards with simple biological treatment.

The pollutants in coal chemical wastewater include dozens of inorganic and organic compounds such as sulfide, cyanide, thiocyanate, phenols, benzene, heterocyclic organic compounds, etc. It is a typical industrial wastewater containing difficult-to-degrade organic compounds. The traditional treatment method in the industry generally uses a large amount of circulating cooling water to dilute the wastewater raw water, resulting in a large scale of sewage treatment plant, a large area, and high treatment costs.

As the global carbon neutrality process continues to accelerate, coupled with the continuous decline in the cost of photovoltaic power generation, the photovoltaic economy continues to improve, and the growth is certain. Photovoltaic new energy, as the main development direction of renewable clean energy, has become an important guarantee for achieving global energy transformation and green development, with an industry growth rate far exceeding economic development and huge market space.

The main characteristics of petrochemical energy wastewater include large water volume, complex and variable water quality, serious organic pollution, and heavy metals and other pollutants. The production scale of the petrochemical industry tends to be large-scale, and various solvents, additives and additives need to be added during the production process, and various reactions need to be carried out, so the wastewater volume is large and the composition is complex; petrochemical wastewater contains a large amount of organic matter, mainly hydrocarbons and their derivatives......

Longantai Environmental Protection uses low-cost wastewater quality treatment and effective high-value recovery to thoroughly treat pesticide wastewater and discharge it in compliance with standards. Highly toxic wastewater can be effectively transformed into toxic pollutants in the wastewater through the Longantai Environmental Protection pretreatment process system, reducing microbial toxicity, improving biodegradability, and significantly removing COD, reducing the operating load of the subsequent biochemical system and ensuring the stable operation of the biochemical system.

In recent years, with the advancement of the goal of ecological civilization construction, cities around the country have successively carried out river management work, and river management has initially achieved results, but the problem of generally low total nitrogen and total phosphorus removal rates has gradually become prominent. Traditional methods for treating river sewage include chemical methods, physical methods, and biological methods, but all of them have some shortcomings, such as chemical methods are prone to secondary pollution, physical methods have low treatment efficiency, and biological methods have relatively expensive costs for adding microbial agents. Therefore, our company has developed a new type of river management filler to address the above problems. This filler does not require the addition of chemical reagents, has high nitrogen and phosphorus removal efficiency, and has low treatment costs.

In order to achieve nitrogen standards, sewage treatment plants rely heavily on external carbon source additions, which not only greatly increases the operating costs of sewage treatment plants, but also leads to a significant increase in sludge production, further aggravating the difficulty of subsequent sludge treatment and disposal.

The water quality of electroplating wastewater is complex and its composition is difficult to control. In addition to cyanide, acid and alkali, it also contains heavy metal ions such as chromium, cadmium, nickel, copper, zinc, gold, and silver. It is highly toxic and may cause cancer, teratogenesis, and mutagenesis, which is extremely harmful to the human body.

Maleic anhydride, also known as maleic anhydride, maleic anhydride, etc., is an organic chemical raw material. Maleic anhydride production wastewater contains maleic anhydride, acetic acid, acrylic acid, dibutyl phthalate, phthalic anhydride, n-butanol, maleic acid, fumaric acid, phthalic acid, etc. The main characteristics of the wastewater are very high oil and COD content, a large number of heterocyclic long-chain difficult-to-degrade organic matter, low pH value, strong toxicity, poor biodegradability, etc. Therefore, it is difficult for traditional biochemical wastewater treatment processes to directly achieve standard discharge.

Liquor brewing mostly uses sorghum, wheat, corn and other raw materials, and adopts basic processes such as artificial cultivation of old cellars, fermentation, distillation, graded storage, and careful blending. The wastewater in its production process mainly includes flushing water, cellar bottom water, pot bottom water and cooling water. The wastewater contains raw material residues, lees and other fiber substances. The polluting components are mostly biodegradable organic matter, but its concentration is high, the composition is complex, and the content of low-carbon alcohols and fatty acids is relatively large. Good inoculation and training are required to make the pollutants biodegradable.

Nuclear industry wastewater is uranium-containing wastewater with high COD, containing sodium ions, nitrate ions, ammonium ions, uranium ions, uranyl ions and uranium complexes, etc. At the same time, there will be a small amount of laundry wastewater, decontamination wastewater, membrane filtration concentrated water, etc. The organic phase in the uranium-containing wastewater is mainly additives in the production process, including extractants, organic solvents, furfuryl alcohol substances and surfactants. The COD is approximately equal to 800-40000mg/L. It is required to be treated to COD <100mg/L before entering the uranium recovery system.

Hydrogen production by water electrolysis is a technology that decomposes water into hydrogen and oxygen through an electrolysis process. The basic principle of this technology is to pass direct current into an electrolyzer filled with electrolyte, and water molecules undergo electrochemical reactions on the electrodes to decompose into hydrogen and oxygen. Hydrogen production by water electrolysis is considered an important part of future energy transformation due to its environmental friendliness, high compatibility with renewable energy, and high purity of hydrogen production.

Desalination is the process of desalinating seawater to produce fresh water. It is an open-source incremental technology for realizing water resource utilization. This technology can increase the total amount of fresh water and is not affected by time, space and climate. It is an important means of stable water supply for coastal residents, drinking water and industrial boiler water replenishment. The salt produced during the desalination process is an important industrial resource.

Recovering precious bromine resources from wastewater can create objective economic benefits, so that wastewater treatment can not only meet discharge standards, but also create considerable profits for enterprises. Long Antai technology is of great significance to the realization of sustainable resource recycling and the concept of green development.

The membrane concentrate has the characteristics of high salt, high COD, high ammonia nitrogen, and high organic matter, which is a difficult problem that enterprises need to solve urgently. The reverse osmosis membrane concentrate treatment process developed by Long Antai with a microchannel intelligent multi-catalytic reactor as the core can achieve high flux, high-speed mass transfer between pollutant particles, high time and space conversion with low energy consumption, and achieve ring breaking and chain removal, and achieve thorough and fine degradation of high-concentration, high-salt, and toxic organic pollutants in a very short time. The effluent can be directly evaporated and desalinated, and the distilled condensed water can be reused, and the crystallized salt meets the industrial salt by-product standard. This process does not require the addition of an external redox agent, does not produce sludge, and has no secondary pollution. It is a clean treatment method and environmentally friendly technology.

Leachate is a kind of organic wastewater with complex ingredients, containing a large amount of "carcinogenic, teratogenic" compounds and heavy metals. If not properly treated, it will pollute groundwater and surface drinking water sources and cause harm to the environment and human body.

Chemical industry wastewater is wastewater generated during the synthesis of chemical products. The wastewater mainly comes from synthesis process wastewater, circulating cooling water, spray wastewater and equipment site flushing water. This type of wastewater has the characteristics of toxicity and irritation, high concentration of organic matter, complex composition, poor biodegradability, difficulty in biodegradation, and difficulty in treatment.

Wastewater from the textile printing and dyeing industry mainly refers to wastewater generated during the processes of fabric steaming, rinsing, bleaching, etc., as well as wastewater generated during the processes of fabric washing, dyeing, printing, etc. This type of wastewater contains natural impurities, fat and organic pollutants such as fat, and contains a large amount of artificially synthesized organic matter such as dyes and detergents. It has the characteristics of complex composition, high salt content, strong pollution, and difficulty in biodegradation and degradation.

Papermaking industrial wastewater is wastewater generated during the pulping and papermaking process, including pulping and cooking wastewater, washing wastewater, bleaching wastewater and paper machine white water. This type of wastewater has complex components and poor biodegradability, and is difficult to treat.

Wastewater from animal husbandry is mainly wastewater generated during animal husbandry, including livestock house flushing water, food dripping water, domestic wastewater, etc. This type of wastewater contains pollutants such as feces, urine, feed, and livestock and poultry hair (feathers), and has the main characteristics of high organic matter concentration, high NH3-N concentration, and high SS concentration.

The water treatment systems for hospitals, hotels, residences, public places, etc. have typical point source distribution characteristics, with small water volume and dispersed distribution. Long Antai Company has developed innovative solutions and key equipment products for the recycling and reuse of such wastewater, achieving efficient purification and treatment of wastewater.

In order to achieve nitrogen compliance, sewage treatment plants rely heavily on external carbon source additions, which not only greatly increases the operating costs of sewage treatment plants, but also leads to a significant increase in sludge production, further aggravating the difficulty of subsequent sludge treatment and disposal.

Recycling of production water and cooling water is an advanced technical means to reuse the water used in the production process after proper treatment in the original production process or other production processes, so as to achieve efficient reuse of water resources. Long Antai Company has developed and innovated solutions and key equipment products for the recycling and reuse of such wastewater, realizing the purification of wastewater and its reuse in production processes.

The concentrated brine from the desalination process contains rich elements. If it can be utilized, it will be a valuable chemical resource. Long Antai Company has developed innovative solutions and key equipment products for the extraction of concentrated brine resources, extracting bromine, lithium elements, salt, etc. from seawater, realizing the recycling of seawater resources and creating huge economic benefits.

High-purity water refers to water with little or no impurities, with extremely high purity and special electrical properties. It is widely used in laboratory research, semiconductor manufacturing, pharmaceutical industry and other fields. Long Antai has developed innovative solutions and key equipment products for the production and manufacturing of such products, achieving efficient preparation of high-purity water.