PWI as one of Kintep New Powers: Safeguard the water sanitation, Safeguard the blue planet of humanity

Since 2019, China has introduced a series of groundbreaking environmental policies marked by innovative concepts and institutional reforms. The Yangtze River Protection Law (Draft) and the Soil Pollution Prevention and Control Law exemplify a holistic ecological conservation approach, shifting focus from isolated pollution control to comprehensive system protection. The revised Solid Waste Law establishes China's first rural household waste sorting system, expanding urban-focused environmental policies to achieve coordinated urban-rural development. The Green Technology Innovation Guidelines create China's first systematic policy framework for green technology innovation, emphasizing market-driven mechanisms and corporate leadership. The pollutant discharge permit system establishes a market-based regulatory framework for fixed-source environmental management, stimulating market-driven incentives. This evolution shifts environmental governance from administrative dominance to a model combining market forces and innovation-driven solutions...

The environmental policies implemented in 2019 have had a profound and lasting impact that continues to this day. That same year, Kintep (Jiangsu Kintep), a company with decades of expertise in wastewater treatment and solid-liquid separation, actively responded to national initiatives by aligning with the trend of refined, informatized, and modernized environmental governance. Partnering with Germany's ECS Corporation – a leader in Sludge Reduction solutions for over two decades – they established the Sino-German joint venture PWI Co., Ltd. (Taizhou Tairuide Technology Co., Ltd.). The company launched a series of fully automated, high-efficiency, and energy-saving equipment products featuring "Lamellar Clarifier + High-Efficiency Automatic Filter Press" as flagship offerings, along with system solutions tailored to diverse industries and complex operational conditions. By combining China's manufacturing strengths in "comprehensive and rapid" production with Germany's technical prowess in "precision and stability", this strategic alliance has emerged as a rising force in the industry, demonstrating unstoppable momentum.

Fully automatic, high efficiency, low energy consumption, and cleaner equipment products

- Lamellar Clarifier

According to the theoretical doctrine of "Shallow Tank Theory" proposed by Prof. Hazen of Germany, a series of inclined plates/tubes are installed inside the settling tank, which effectively increases the settling area, improves the state of Water Flow, and enhances the settling efficiency.

Lamellar Clarifier realizes rapid mud-water separation in five steps: filtration and dissipation of energy, equalization of water distribution, solid-liquid separation, clear-liquid collection, and sludge thickening.

In addition, according to the water quality, a thickening scraping device can be added at the bottom to optimize the sludge discharge environment.

- High-Efficiency Automatic Filter Press

The advanced rapid solid-liquid separation technology of KMP/KRP filter press system is introduced from Germany.

Unique fast open seal design. The functions include automatic filter press, vibration of filter plate, opening and closing of valves, starting and stopping of material pump, material detection, and fault alarm.

According to customer's demand and working conditions, the equipment can be customized with automatic liquid collection drip tray, electric vibration plate to assist in discharging the sludge cake, and spray cleaning of the filter plate and cloth.

PWI aims to provide users with a more efficient, cleaner, safer and smarter new sludge dewatering equipment.

Refined, automated, adaptable, innovative and collaborative system solutions:

- Plastics recycling wastewater

PVC Zero discharge solution for reclaimed wastewater

Recycled plastic production involves processing used or discarded plastics through screw extruders to generate granules, which are then cut into pellets using pelletizers. The recycling process primarily includes three key stages: plastic cleaning, separation, and wet crushing. The pollutant concentration in wastewater is closely related to the properties of the plastic waste used in production. To address the high requirements for suspended solids (SS) content during cleaning and crushing processes, a treatment system combining VMC Lameira sedimentation and air flotation can effectively remove most suspended solids. This treated wastewater can then be recycled back into production processes, significantly reducing wastewater discharge.

- Lithium battery rejuvenation

Wastewater solutions for the energy industry

New energy battery sewage is usually produced in lead-acid battery production process, coating process, formation process and battery cleaning process, which contains lead heavy metal wastewater; at the same time, in lithium battery and solar cell fields, there will be heavy metal wastewater, acid and alkali wastewater, high nitrogen, high phosphorus wastewater, etc.

- Solar products wastewater

Photovoltaic wastewater solutions

Photovoltaic wastewater primarily originates from waste additive solutions and cleaning processes during silicon rod cutting, grinding, slicing, wafer polishing, and related operations. Key treatment challenges include managing high concentrations of organic compounds (primarily polyethylene glycol), suspended solids (mainly silicon powder and silicon carbide), along with contaminants such as fluoride ions and acidic/alkaline substances (including buffer acids like hydrofluoric acid and nitric acid).

- Glass process wastewater

Zero discharge solution for glass cutting and grinding wastewater

Waste water classification

1. Saw blade cutting wastewater (saw bed wastewater)

The primary pollutants in glass processing wastewater are "cooling agents" and saw blade cooling water. Typically, the cooling agents mainly consist of resin acids and their saponification products, unsaturated fatty acids and their saponification products, lignin and its degradation products, etc. Resin acids primarily include rosinic acid and sebacic acid.

2. Grinding wastewater and trimming machine wastewater

After the raw material is processed, it is usually necessary to further treat the surface of the plate, during which there are many dust pollutants. In order to reduce pollution, water is usually used as an auxiliary dust collector.

The water consumption in the glass processing industry primarily occurs during pretreatment processes, including edge grinding, drilling cooling, and washing operations. The wastewater generated from these pretreatment stages contains substantial amounts of glass silicon powder, along with small quantities of silicon powder, abrasive materials, cutting kerosene, cleaning agents, and citric acid. This results in wastewater characterized by high volume, elevated glass powder concentration, and poor biodegradability. Additionally, the effluent typically contains additives and oils, with most wastewater exhibiting acidic properties

- Industrial ceramics process wastewater

Industrial ceramic wastewater zero discharge solution

Ceramic processing wastewater is generated during the production of ceramics through molding and firing processes, using raw materials such as clay, feldspar, and limestone mixed with appropriate dispersants and water. The wastewater mainly originates from the molding process stages, containing 0.1-0.2% (by weight) of solid waste and PH7.5-8.5 particles. It is typically discharged after sedimentation treatment in natural settling tanks. Post-discharge measures should prevent clogging of drainage pipelines and sedimentation in river channels.

"Water supply and sanitation represent humanity's earliest interaction with the planet's hydrological cycles." Kintep and PWI will continue to provide competitive environmental equipment and solutions in the industry and water treatment sector, creating favorable value for customers. Together, we will safeguard the shared blue planet of humanity.