Sludge Storage Tank

Sludge storage tanks provide storage for biosolids and can serve as a location for thickening prior to further processing or disposal. Mixing in sludge storage tanks provides uniform sludge concentration, prevents sludge stratification, and ensures uniform feed to dewatering equipment.

A sludge storage tank is required to store sludge from any source. The sludge can be primary sludge, activated sludge, imported sludge, and scum. Sludge may be contaminated with heavy metals; it may contain chemical contaminants that require complex procedures to deal with. Pathogens, microorganisms, and sewage that may require biological treatment, food and beverage manufacturing, and agricultural waste may require additional treatment procedures.

During wastewater treatment, the water content is reduced, leaving behind sludge. This still contains a certain percentage of water, but as it settles, more water can be removed. The sludge can be subjected to further biological treatment, or sludge tanks can simply be used to store the sludge before it is removed.

Why Choose Center Enamel Glass-Fused-to-Steel Tanks

Cutting edge enameling technology to secure the product performance

The first and most experienced Glass-Fused-to-Steel tanks manufacturer in Asia

Innovative enameling protection on sheet' s four edges and bolt holes

Product meet or exceed AWWA D103-09, OSHA, ISO/EN 28765, NSF61, NFPA etc. international standards

Certified by ISo9001, NSF61, LFGB, BSCI etc. international qualification system

Mature exporting experience with projects reference in more than 60 countries in the world

Quick installation lowest maintenance cost

Quality Control

Raw material test: ingredient analysis, impurities test

Formula finalizing small sample test: enamel fluidity test, chromatic difference analysis, enamel burning experiment acid, and alkali resistance test, glossy, adhesion test etc.

Middle stage product test: magnify experiment simulated operation environment

Destructive testing: impact test, 1500V holiday test, sliced electric microscope analysis

Our Reverse Osmosis Tank

About Center Enamel

Center Enamel is the leading bolted tanks and roof manufacturer in China, which have more than 30 years of industry experience. Our main products include Glass-Fused-to-Steel tanks, stainless steel tanks, Carbon Steel tanks, and aluminum geodesic dome roofs, and can provide customized design, manufacturing, and installation for global customers. All our products are in strict accordance with AWWA D103-09, API 650, OSHA, ISO 28765, NSF/ANSI 61, NFPA, and other international standards. Until 2022, Center Enamel storage tanks and roofs have been exported to more than 90 countries including the USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil, South Africa, etc.

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, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs. With professional enameling R&D team and more than 20 enameling patents, Shijiazhuang Zhengzhong Technology Co.,Ltd has become the leader in bolted tanks industry of Asia. Our products are certified to ISO 9001, CE, NSF/ANSI 61, WRAS, ISO 28765, LFGB, BSCI, ISO 45001 and other international standards.

Shijiazhuang Zhengzhong Technology Co., Ltd 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 Center Enamel Glass-Fused-to-Steel tanks is in strict accordance with AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards. Center Enamel 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 2023, Center Enamel bolted tanks have been exported to more than 100 countries including USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil and South Africa etc., the superior tank quality and prompt service gains us worldwide recognition.

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