Pulp and Paper Industry Sewage Treatment

Pulp and Paper Industry Sewage Treatment

The pulp and paper industry is one of the oldest core industrial sectors in the world. The socio-economic importance of paper has its own value for the development of the country as it is directly related to the industrial and economic growth of the country. The paper industry is a capital, energy and water-intensive industry. It is also a highly polluting process that requires significant investment in pollution control equipment.

Pulp and paper mills are a major industrial sector that use large amounts of lignocellulosic material and water in their manufacturing processes and release chlorinated lignosulfonate acids, chlorinated resin acids, chlorinated phenols and chlorinated hydrocarbon. About 500 different chlorinated organic compounds have been identified, including chloroform, chlorates, resin acids, chlorinated hydrocarbons, phenol, catechol, guaiacol, furans, dioxins, eugenol, vanillin Wait. These compounds are the result of the reaction of residual lignin in the wood to form fibers and chlorine/chlorine compounds for bleaching. Colored compounds and adsorbable organohalogens (AOX) released into the environment from pulp and paper mills pose a number of problems. Wood pulp and paper product production produces a number of pollutants, characterized by Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Suspended Solids (SS), toxicity and color, when untreated or improperly treated Wastewater is discharged to receiving waters. The effluent is toxic to aquatic organisms and exhibits strong mutagenic effects and physiological damage.

Our Advantages

About Us

Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel Co., Ltd) offers our customers EPC project solutions, water and wastewater treatment equipment for biogas projects, livestock wastewater treatment, industrial wastewater treatment, municipal water & wastewater treatment.

Our customers receive all services and know-how from one source: in every step of project-from detailed engineering all the way to final construction, commissioning to after-sales service. Experienced project engineers and an in-house construction team guarantee that every component if of the highest quality. Center Enamel offers system solutions on highest technological level. Our strict ISO-certified quality management ensures the longevity and economic efficiency of our customers’ investment. In addition to biogas projects, livestock wastewater treatment project, industrial wastewater treatment project, municipal water & wastewater treatment project, Center Enamel supplies the whole project components such as storage solutions, digester, wastewater mixer, Three-phase separator, biogas purification system etc.

We provide innovative and sustainable water, wastewater and biogas solutions to customers around the world, helping our customer solve the most complex water and wastewater challenges.

About Us

Shijiazhuang Zhengzhong Technology Co.,Ltd is a professional manufacturer dedicated to the design and fabrication of bolted storage tanks since 1989. Our products range includes Glass-Fused-to-Steel (GFS) tanks, SS tanks, enameled cookware and enamel glaze. With a professional enameling R&D team and more than 20 enameling patents, Center Enamel Co., Ltd has become the leader in bolted tanks industry of Asia. It is certified to ISO 9001, NSF/ANSI 61, ISO 28765, LFGB, BSCI, ISO 45001, ISO 24001 and other international standards.

Center Enamel is not only the first manufacturer in China which produces Glass-Fused-to-Steel tanks, but also the most experienced professional bolted tanks manufacturer in Asia. The engineering & design, product testing and quality system of Glass-Fused-to-Steel tanks is in strict accordance with AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards. Glass-Fused-to-Steel tanks are wildly used in drinking / potable water, industrial effluents, municipal sewage, bio-energy, landfill leachate, agriculture and other applications. Until 2021, Center Enamel bolted tanks have been exported to more than 80 countries including USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil and South Africa ect. Our superior tank quality and prompt service gain us worldwide recognition.

Why choose Center Enamel Glass-Fused-to-Steel tanks:

More than 30 years experience in Enameling Technology R&D

The only GFS tanks manufacturer which also produce enamel frit, able to adjust formula to secure enameling quality.

Strict Engineering Design Standard- AWWA D103-09, OSHA, NSF61, EN28765 and NFPA etc

The only GFS tanks manufacture in China which can be widely accepted by USA market for many years.

Cooperate with Well-known International Corporations

Paques, Veolia, Coca-Cola, Sabesp, Wilmar, PetroChina, Heineken, AbInBev, Porsche, Sinopec etc.

Professional Experience with International Market

Successful GFS tanks projects references in more than 80 countries worldwide.

As an outstanding containment system provider with more than 30 years of experience, Shijiazhuang Zhengzhong Technology Co., Ltd sincerely expects to establish long-term cooperation with local partners throughout the world and make continuous contributions to the development of the industry.