Green Factory Operational Practices: Wastewater Treatment / Energy Management / Waste Recycling

In the 2026 international beauty market, a "Green Factory" is no longer a bonus point; it is a barrier to entry.

Increasingly, mainstream European and American brands ask an additional question beyond pricing, capacity, and certifications when selecting OEM/ODM partners:

"Where is your factory's ESG data? How is wastewater treated? Is carbon emissions tracking in place? How is waste classified and recycled?"

This is not about sentiment; it is procurement policy. Global top-tier retailers (Sephora, ULTA, Boots, etc.) have already integrated supplier environmental performance into their supplier qualification assessment systems. Factories failing to provide credible ESG data are gradually losing their ticket to the international supply chain.

As an OEM/ODM factory targeting international brand clients, we are today completely deconstructing our own green factory operational system—not with marketing jargon, but with real operational data and concrete practices.

I. Why is Cosmetic Manufacturing an "Environmentally Sensitive" Industry?

Before discussing solutions, we must first understand the problem itself.

Cosmetic Industrial Wastewater (CIWW) contains high concentrations of toxic pollutants, including petroleum ethers, oils/greases, and surfactants, with extremely high Chemical Oxygen Demand (COD). It is one of the industrial wastewater types posing a major threat to the natural environment and must be professionally treated before discharge.

Beyond wastewater, energy consumption and waste issues cannot be ignored:

• A typical-scale beauty manufacturing factory generates approximately 5,000 tons of CO2 equivalent in carbon emissions annually. Transitioning to renewable energy can reduce a beauty brand's carbon footprint by about 30%.

• From a holistic supply chain perspective, the cosmetics industry's Scope 3 emissions reached 45 million tons of CO2 equivalent in 2022, with about 60% originating from raw material procurement, followed by logistics/transportation (approx. 10% of the carbon footprint) and packaging waste.

• Meanwhile, the average water consumption per cosmetic product over its lifecycle is about 15 liters (excluding water within the formula itself), bringing the global cosmetics industry's annual production water usage to a staggering 10.4 billion liters. However, approximately 22% of cosmetic industrial wastewater still enters rivers without adequate treatment, posing ecological threats from persistent pollutants like PFAS.

These numbers form the starting point for green factory operations.

II. First Pillar: Wastewater Treatment — From "Compliant Discharge" to "Circular Reuse"

Wastewater in cosmetic production mainly comes from three stages: equipment cleaning (CIP cleaning of filling tanks, pipelines, and mixing kettles), waste liquids containing active ingredients generated during formulation, and workshop floor washing wastewater.

These wastewaters are characterized by high COD, high surfactant concentrations, unstable pH, and potential organic compounds like fragrances, preservatives, and colorants. Direct discharge would severely impact aquatic ecosystems.

Our Wastewater Treatment System

① Pre-treatment Stage (Physicochemical Treatment)

Wastewater entering the system first passes through grease traps and primary sedimentation tanks to separate floating oil and suspended solids. It then undergoes flocculation and sedimentation (using PAC + PAM) to remove colloidal particles, reducing the COD to a level suitable for biochemical treatment.

② Biochemical Treatment Stage (A/O Process)

We employ an Anaerobic + Aerobic (A/O) combined biological treatment process, utilizing microorganisms to degrade organic pollutants. The aerobic aeration tank uses the activated sludge method to further remove residual COD and ammonia nitrogen, ensuring effluent quality meets or exceeds the National Class I Wastewater Discharge Standard (GB 8978-1996).

③ Advanced Treatment and Reuse Stage (Closed-Loop Circulation)

For industry-leading cosmetic factories, advanced wastewater reuse is the core technical path. Through advanced membrane filtration systems (MF/UF/RO), treated wastewater can be reused for workshop equipment rinsing, landscaping irrigation, and industrial cooling (non-product contact uses), achieving closed-loop water reuse. For example, L'Oréal's Suzhou factory "Waterloop" project is a global representative case of systematic practice in the cosmetics industry, where its wastewater reuse system also achieved an 8.5% reduction in factory energy consumption. 

Our Goal: A wastewater reuse rate of ≥35% per ton of cosmetic product produced, continuously approaching closed-loop water standards.

III. Second Pillar: Energy Management — From "Energy Consumption" to "Energy Generation"

Energy management is one of the most quantifiable, provable, and closely watched dimensions by international brands in green factory operations.

Scaled Introduction of Renewable Energy

Installing rooftop solar photovoltaic (PV) systems can cover 40% of a cosmetic factory's daily electricity consumption, significantly reducing reliance on traditional fossil fuels. Meanwhile, organic solvent recovery systems can recover and reuse over 90% of organic solvents used in production, drastically reducing Volatile Organic Compound (VOC) emissions.

Our factory has completed PV system deployment on rooftops and is progressively advancing Green Energy Certificate (REC) procurement to bridge the electricity gap not covered by rooftop PV, ensuring the proportion of renewable energy in total factory electricity consumption continues to rise.

Energy Efficiency Management and Continuous Monitoring

• Zoned Energy Monitoring: Smart meters are installed across the factory to separately measure energy consumption of production workshops, HVAC systems, lighting, pure water preparation equipment, and wastewater treatment stations. Daily energy reports are generated to identify anomalies and intervene quickly.

• Process Optimization for Energy Saving:

  • Upgraded insulation on emulsification kettles to reduce heat loss during heating.

  • Full replacement of traditional fluorescent lights with LED lighting, saving ~15% in annual workshop lighting electricity.

  • Introduction of energy-saving RO membrane modules in pure water preparation systems, reducing unit water production consumption by ~20% compared to traditional equipment.

  • Synchronizing air compressor operation schedules with production rhythms, automatically switching to energy-saving modes during non-production hours.

Carbon Emission Tracking System

We have established a "Carbon Emission Accounting System" to regularly track carbon emissions across raw material procurement, production processes, packaging, and transportation/logistics. Based on these results, targeted emission reduction plans are formulated. This data system is not only for internal management but also serves as the core data foundation for responding to international brand clients' ESG supplier surveys (e.g., CDP Supply Chain Questionnaire).

IV. Third Pillar: Waste Management — From "Disposal" to "Recycling and Recovery"

Waste generated by cosmetic OEM factories is complex, covering: non-conforming products and offcuts from production, packaging waste (cardboard boxes, stretch film, plastic pallets), laboratory waste liquids and reagents, waste oil from equipment maintenance, and daily office domestic waste.

The core logic of green waste management is: classify first, control the destination, prioritize recycling, and ensure safe disposal as a baseline.

Graded Treatment of Production Solid Waste

• Recyclable Waste (waste cardboard, plastic bags, metal drums): Long-term agreements with qualified recycling merchants, regular clearance, metered by category, with recycling certificates issued for annual factory waste recycling rate calculations.

• Production Waste (non-conforming products, expired raw materials, cleaning waste liquids): Entrusted to third-party agencies holding Hazardous Waste Operation Licenses for harmless disposal, with a five-copy manifest (hazardous waste transfer manifest) issued throughout the process to ensure a fully traceable disposal chain.

• Packaging Waste (outer boxes, inner liners, stretch film): Introducing a circular packaging system, agreeing on a raw material packaging return mechanism with suppliers to reduce the use of single-use packaging.

Zero Waste to Landfill Goal

Zero Waste to Landfill certification is one of the most credible third-party verifications in green manufacturing, requiring enterprises to divert 100% of factory waste from landfills through recycling, composting, or energy recovery. International bodies like Green Circle provide independent audits and certifications to verify corporate waste destination data.

For context, P&G's 2025 fiscal year environmental metrics show its beauty business segment achieved a waste recycling/reuse rate of over 99.9%, practically achieving zero waste to landfill. This is the industry's highest public benchmark and our long-term directional goal.

V. The Market Value of Green Operations: This is Not Just "Doing Good"

Mitigating Increasingly Stringent Regulatory Compliance Risks

The EU's Corporate Sustainability Reporting Directive (CSRD) has mandated supply chain ESG information disclosure for enterprises of a certain scale starting in 2025. This means European brand clients will increasingly require their suppliers (including OEMs) to provide quantifiable environmental data. Factories that establish data systems in advance will form an unreplicable compliance barrier over the next 3–5 years.

Are you looking for a reliable Skincare factory?

Are you seeking a trusted partner to launch or scale your skin care line? At Deva Skincare,we specialize in developing safe formulations that combine barrier science with clean, compliant manufacturing.

Our R&D team and certified production facilities deliver turnkey OEM/ODM solutions tailored to your target market’s regulatory and consumer expectations.

By collaborating with Deva Skincare, you gain access to industry-leading expertise and innovative formulations that set your brand apart in the competitive global market. Contact us today to discover how we can help you succeed.

Final Thoughts: A Green Factory is the Most Long-Term Competitive Investment

In the cosmetic OEM industry, price wars, capacity competition, and certification arms races are short-term games.

A genuinely operational, data-transparent, and continuously improving green factory operational system is the core asset for building long-term trust in the international market.

It tells every brand owner: choosing to partner with us is not just choosing a factory that can make your product, but choosing a responsible partner that can stand alongside your brand's values in front of consumers and regulators.

This is the true commercial significance of a green factory.