Blog- Qingben Environmental Technology Co, Ltd

Sep 23, 2026

Wastewater Treatment and Recycling: Complete Guide to Systems, Technologies & Reuse

Every cubic meter of wastewater carries two things a facility can no longer afford to ignore: pollutants that must be removed, and water that can be reused. Across municipal and industrial sectors, w...

Sep 20, 2026

How Does an Oil Water Separator Work? Gravity, Coalescing Plates and DAF Explained

A metal-working plant discharges about 20 cubic metres per hour of rinse water carrying roughly 400 mg/L of tramp oil and cutting fluid. Free oil floats to the surface within minutes if the water is ...

Sep 16, 2026

Oil-Water Separation: Technologies, System Design, and Equipment Choices

Produced water from a wellhead, wash water from a food plant, and bilge water from a vessel all share one problem: oil must come out before the water can be reused or discharged. The real difficulty ...

Sep 09, 2026

Clarifier Wastewater Treatment: How It Works, Design, and Selection Guide

At a municipal wastewater plant in Jiangsu, operators watched effluent suspended solids climb from 25 mg/L to nearly 60 mg/L over the course of a month. The biological process seemed stable, and chem...

Sep 08, 2026

Qingben Environmental Protection Successfully Ships 402 Sludge Dewatering Machine and Containerized Dewatering Equipment to Shenzhen, Guangdong

Qingben Environmental Protection Technology (Jiangsu) Co., Ltd. recently completed the shipment of a 402 sludge dewatering machine and its supporting containerized dewatering equipment to Shenzhen, G...

Sep 02, 2026

Primary Clarifier in Wastewater Treatment: Design, Removal Rates and Equipment Guide

Few pieces of equipment shift as much pollutant load for as little operating cost as a primary clarifier. Sitting after screening and grit removal, this first sedimentation tank strips out roughly 90...

Aug 26, 2026

Grit Chambers in Wastewater Treatment: Types, Design, and Maintenance Guide

Picture an operator opening a digester hatch and finding several centimeters of sand cushioning the bottom. The desludging crew is already scheduled, the gas mixing nozzles are partially buried, and ...

Aug 21, 2026

Qingben Environmental Protection Successfully Delivers Sludge Treatment Equipment to Shijiazhuang

Qingben Environmental Protection Successfully Delivers Sludge Treatment Equipment to Zhongda Beilait Special Equipment Co., Ltd. in Shijiazhuang Recently, Qingben Environmental Protection Technology (...

Aug 20, 2026

Sludge Collector Guide: Types, Selection Criteria, and Maintenance Tips for Clarifiers

Picture a municipal secondary clarifier where effluent TSS has crept up by two to three milligrams per liter over two weeks. The biology looks healthy, the return-activated-sludge pumps run at their ...

Aug 13, 2026

What Is Sludge in Wastewater Treatment? A Practical Guide for Plant Operators

What Is Sludge in Wastewater Treatment? Every wastewater treatment plant generates a residual stream that cannot be ignored: sludge. From the primary clarifier, the secondary clarifier and the chemic...

Aug 11, 2026

Qingben Environmental Protection Delivers Sludge Scraper Equipment to Ningxia, Supporting Local Wastewater Treatment Projects

Qingben Environmental Protection Technology (Jiangsu) Co., Ltd. has recently completed the production and delivery of sludge scraper equipment to a wastewater treatment project in Ningxia. This succes...

Aug 06, 2026

Why Choose a Screw Press for Sludge Dewatering?

Why Choose a Screw Press for Sludge Dewatering A screw press is chosen for sludge dewatering because it operates with low energy consumption, a small equipment footprint, minimal clogging, and fully ...

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