AI Wastewater Treatment Cases - Page 9

Sludge Anaerobic Dig

Anaerobic sludge digestion is about the gas balance: a 40% VS degradation rate and a biogas yield of 1.0 are not on the same basis.

Nationwide multi-industry (municipal wastewater treatment plants / food fermenta

Pilot to full-scale engineering (tens to thousands of t/d wet sludge; total dige

In the Chinese context, anaerobic sludge digestion is often regarded as a volume reduction measure, but its real output is biogas, and its economics are determined by the gas price rather than the volume reduction rate. This article first clarifies three

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Chemical Precipitati

Alkaline precipitation for heavy metal wastewater: When pH falls within the "precipitation range," why does the effluent still fail to meet standards?

Multiple industries nationwide (electroplating and surface treatment / PCB circu

Pilot to engineering scale (100 m³/d to 200 m³/d per train, centralized treatmen

In treating heavy metal-containing industrial wastewater by chemical precipitation, the most common pitfall is mistaking the "optimal precipitation pH range" for the "compliance window," treating them as the same interval. This article breaks down three a

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Circulating Cooling

Circulating Cooling Water Concentration: Concentration Ratio Pushed Up to 5 Times, but the Same Specification Slams the Brakes at 1100 mg/L

Multiple industries nationwide (thermal power generation / iron and steel metall

Engineering-scale (a single circulating water system handles thousands to tens o

Increasing the cycles of concentration in an industrial circulating cooling water system is the primary means of saving water and reducing emissions, but the term "cycles of concentration" has never been a single number in actual operation. This article b

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Textile Printing and

Printing and Dyeing Wastewater: The First Step in Treatment Is Not a Reaction Tank, but Flow Separation

Multi-industry nationwide (textile dyeing and finishing / knitting / chemical fi

Pilot to full-scale engineering (hundreds to 15,000 m³/d)

The first decision in printing and dyeing wastewater treatment is not process selection—it is stream segregation. This article restores four commonly conflated definitions to a calculable basis: in GB 4287—2012, the three characters "indirect discharge" c

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$Pharmaceutical Wastewater: Six Standards Govern an Entire Industry—"High Concentration and Refractory" Is Only Half the Story$

Classification-based

Pharmaceutical Wastewater: Six Standards Govern an Entire Industry—"High Concentration and Refractory" Is Only Half the Story

Nationwide multi-industry (antibiotic fermentation / chemical synthetic APIs / t

Pilot to full-scale engineering (100–7,500 m³/d, including a 2,000 m³/d fermenta

Pharmaceutical wastewater is not a single water category but six: fermentation-based, chemical synthesis-based, extraction-based, traditional Chinese medicine-based, biological engineering-based, and mixed formulation-based, each with its own national sta

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Segregated Treatment

Paper Mill Wastewater: 90% of the Pollution Load Should Not Enter the Wastewater Treatment Plant

Multiple industries nationwide (Chemical Wood Pulp / Chemical Bamboo Pulp / Non-

Pilot to engineering scale (tens to tens of thousands of m³/d, including a 6500

A pulp mill discharges three streams: black liquor, mid-stage wastewater, and white water. Black liquor carries over 90% of the plant's pollution load, yet it should go to the alkali recovery boiler; white water has the largest volume and the lowest load,

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