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RESOURCE LIBRARY

Engineering References, Technical Documents & Company Updates

Use traceable project facts, current document versions, and clearly bounded company updates to support early engineering screening and internal review.

01 · CASE STUDIES

Start with evidence from a comparable duty

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Tubular membrane equipment for the 40 m³/h coking wastewater RO concentrate desilication project

Tubular Membrane Engineering

40 m³/h Coking Wastewater PEK Softening

Control reaction solids and hardness- or silica-related scaling risks before downstream membrane sections.

Project scale
40 m³/h
Feed / process stream
High-silica, high-hardness coking wastewater
Membrane sections
Softening conditioning + PEK tubular membrane solid-liquid separation
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02 · DOWNLOADS

Document shelf

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Company Profile — PDF cover

Brochures

Company Profile

File language
English
Version
2025
Format
PDF
Size
25.5 MB

A concise overview of Plum, its business scope, manufacturing and engineering capabilities, core technologies, and selected references.

Tubular Membrane Brochure — cover

Brochures

Tubular Membrane Brochure

File language
English
Version
2025
Format
PDF
Size
16.9 MB

An overview of Plum tubular membrane materials, modules, process solutions, applications, and engineering references.

Case studies

Project case studies

Documents will be added here as they become available.

03 · NEWS & INSIGHTS

Company updates and technical perspectives

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Technical Insight

How PEK Tubular Membranes Treat Oily Wastewater

Understand free, dispersed and emulsified oil, PEK tubular membrane crossflow separation, pretreatment and operating considerations, with a 500 m³/d oilfield produced-water project reference.

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Technical Insight

Spray Robot Cleaning Waste All Classified as Hazardous? This Membrane Process Achieves Closed-Loop Reuse

When automotive spray robots run batch production or change colors, they use water-based cleaning agents to flush the spray heads, bell cups and lines. Traditionally, the resulting cleaning waste liquid has been shipped out entirely as hazardous waste, at high cost. Plum Membrane’s PEK® tubular membrane + nanofiltration separation process returns more than 80% of […]

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Technical Insight

How Does Tubular Membrane Pretreatment Reduce RO Scaling Risk?

Scaling is one of the most persistent problems in industrial reverse osmosis systems. As water recovery increases, dissolved minerals become concentrated and can precipitate on membrane surfaces. Hardness, silica, and other sparingly soluble compounds may gradually restrict water flow, increase pressure requirements, and make cleaning more difficult. For industrial facilities pursuing higher water recovery or […]

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