Dasmart offers optimal solutions and supplies comprehensive sets of production and operation services for municipal wastewater reuse, circulating water use in compliance with national and local standards and in accordance to regional development and urban planning. 

Dasmart provides solution for the raised turbidity of tap water caused by high humic content or high silt content in water treatment plants.

Dasmart is able to provide a comprehensive set of solutions for seawater desalinazation and zero emission of RO concentrated water.

Dasmart is able to provide technical guidance and operational management services for operating sewage treatment plant.

With increasing environmental protection, many countries have put forward stricter requirements on the composition of engine fuels, especially on its sulfur content. Currently, more than 90% of the sulfur-containing compounds in refined oils within China come from catalytic cracking gasoline, and the sulfur content of FCC gasoline is key in reducing the sulfur content of gasoline.

Dasmart has developed a new desulfuration solution characterized by high selectivity, high oil yield, desulfurization without octane reduction, while requiring low investment and low processing cost. For example, FCC gasoline desulfurization process package design and technical services can reduce sulfur content to below 10 mg / L, the desulfurization cost less than 70 RMB / ton without loss of octane value.

With the problem of inferior quality of the crude oil becoming more prominent, there has been increasingly stringent environmental regulations. Heavy fuel oil demand continues to decline, and the demand for light and clean fuel steadily rises.

The light trend of heavy oil has become a major strategic issue to ensure national energy security. Dasmart can provide wax removal device of the basic nitrogen process package design and solution. With the transfer of basic nitrogen compound removal from coker gas oil (CGO) and coke powder, the CGO can be used as raw materials for light cracking unit and catalytic cracking unit (CCU) directly. 

Dasmart can provide the following hazardous waste treatments:

- Molecular refining technology consulting;

- Transfer and technical services of removing naphthenic acid from petroleum distillates;

- Lube-based oil without clay technology transfer;

- Treament solutions for fluorine-containing organic compounds;

- Technology consulting for refinery plant process optimization;

- Technology consulting for denitrification waste residues and S effluent.

CBR is a biological membrane technology based on the special structured carrier, improving the system’s processing efficiency due to the fact that biological carrier has relatively large specific surface area and increases the biomass. The process has strong impact resistance, and its operation and maintenance is simple. For detailed technical specifications, please go to the Download Center to download the technical specifications.

Dissolved Air Flotation and Filtration (DAFF) is a new process combining Dissolved Air Flotation (DAF) and Multimedia Filter (MMF).

Sewage first combines with saturated dissolved gas water and enter the dissolved air flotation pool. A myriad of tiny bubbles caused by saturated dissolved gas water  stick in floc surface, rising to the upper layer of the liquid to form a suspended sludge layer. Mud scraper equipment will scrape away the suspended sludge, and at the lower part of the clear water, a small part of the suspended solid particles is trapped in the filter material. The process has advantages of low energy consumption, compact structure, small occupation area, low construction cost and high treatment efficiency. If for pretreatment of the membrane treatment process, this process can effectively increase subsequent 5-8% membrane flux. Please go to the Download Center to download the detailed technical specification.

Anaerobic environment can be made  in a closed device by adding carrier filler. Under such anaerobic conditions, biofilms grown under anaerobic circumstance will transform complicated degradable particles and organic molecules in sewage into small molecular organic compounds and improve the wastewater biodegradability and accomplish the complete oxidation of organic matter to remove COD. The technology in the same biological treatment unit combines both the biomembrane process and activated sludge process, improving the treatment capacity of the reaction tank and the treatment effect, and enhancing the system’s impact resistance. Please download the technical specification at the download center.

Advanced Oxidation Process (AOP) is a technology that make use of highly oxidizing free radical oxidation derived from ozone with surface catalyst to oxidize the organic pollutants in sewage. AOP can improve the biodegradability of wastewater, while destroy organic molecules like chromophores to achieve the purpose of decolorization, which can be used for refractory wastewater treatment, wastewater bleaching, wastewater advanced treatment, RO concentrated water treatment discharge standards; the AOP technology can be carried out at normal temperature and pressure, which is featured by mild reaction conditions, simple operation, the use of a catalyst to improve catalytic efficiency, and less investment in equipment. Detailed technical description please go to the Download Center.

It is of Dasmart’s own R&D  of a new suspended dirt separation and purification equipment, mainly used in the areas of the suspended solids separation, oil-water separation and purification, coagulation reaction and purification, activated sludge separation and concentration in industrial and urban sewage. The HEDAF technology is more effective to sludge where dewatering performance is poor, greatly improving the subsequent mechanical dewatering processing capacity, increasing the service life of the equipment, also realizing the integration of machinery, electric and instrument control. For detailed technical specifications, please go to the download center. 

Recycled water, sea water desalination and ultrapure water production depends on membrane filtration technology. all residual turbidity, bacteria, viruses and dissolved solids in raw water can be basically removed by ultrafiltration and reverse osmosis treatment, then the inflow can provide high-quality recycled water for the boiler feed water. This ultrafiltration and reverse osmosis technology is very useful due to the fact that the system automation is relatively high,  and it covers smaller area. Please go to the download center to download the detailed technical specification.

Porous ultrafiltration membrane combines seven individual capillaries in a highly robust fiber. The water to be treated is forced through the capillaries and disperses laterally through the pores of the membrane. Suspended solids, viruses, germs and bacteria are retained inside the capillaries. Used in conventional industrial and municipal water treatment projects, the ultrafiltration membrane can completely block the particles, bacteria and smaller size of particles, which are larger than the pore size of the capillaries in the inflow water. The 7-hole capillary design eliminates the possibility of thread breakage to the largest extent, greatly increases the mechanical properties of the ultra-filtration membrane, and ensure its integrity. The unique design of the support layer makes the water quality higher, water turbidity, SDI lower, bacteria removal rate higher, and thus the water quality is higher than the drinking water standard. High flux Multibore porous membrane makes the membrane produce higher water yield under low operating pressure based on the company's unique membrane material –modified Polyether Sulfone Membrane (PESM) technology. For Detailed technical specifications, please go to the download center.

This process is to use Coker Gas oil(CGO) to touch denitrogenation agent to form the complexation Reaction, for sedimentation separation, so as to achieve the purpose of nitrogen removal. The technology consists of a number of patents with independent intellectual property rights.It is applicable to inferior oils containing high nitrogen, such as coker gas oil(CGO) and coking diesel oil, which can significantly improve the performance of secondary processing.The technology consists of a number of patents with independent intellectual property rights.Please contact us for more details.

The new highly selective extraction agent extract and desulfurate the catalytic cracking light  and heavy gasoline, based on the similarity-intermiscibility theory. The used extraction agent can be recycled; the agent loss and the oil loss are relatively low which in turn is  economical  and environmental-friendly. At the same time, it does not reduce the gasoline octane. The technology is composed of a number of patents, with independent intellectual property rights.

The advantages of the technology:

(1) The gasoline distillation range is wide, which decreases processing capacity of hydrodesulfurization and reduces the gasoline octane loss;

(2) The selectivity of the extraction agent is very high, and its adaptability is strong. It has no requirement on the sulfur forms in the raw materials and can effectively remove the mercaptan, thioether, thiophene, etc. 

(3) In the desulphurization process, benzene and basic nitrogen compounds are removed in the meantime, and its removal rate is up to more than 50%,  helping  gasoline benzene content index reached China’s Ⅵ standards.

(4) less waste liquid, and can be treated with other sewage treatment, no environmental worries;

(5)The process adaptability is strong;

(6) Gasoline processing cost is low;

(7) The technology is characterized by simple process, modest investment, mild operating conditions, remarkable economic benefits, and promising application prospects.

If you are interested, please contact us for more details.

Denitrification Agent

Desulfurizing Agent

high efficient absorbents

Nitrogen removal unit supplementary refining agent

Desulfurizing unit supplementary refining agent

Boiler cleaning agent

corrosion inhibitor

Monosodium Phosphate,disodium phosphate,TSP (trisodium phosphate)