Flue gas generated from thermal power plants usually requires desulfurization and denitrification. In the wet desulfurization process unit, lime water is washed in a wet scrubber or some chemicals are added to promote reaction and absorption. After leaching, wastewater usually contains a certain amount of heavy metal ions, COD and other ingredients. There are certain difficulties in dealing with this kind of water：
High heavy metal content and high temperature;
Wastewater is acidic or alkaline;
Extremely easy to foul.
The traditional treatment process "coagulation sedimentation + filtration" can precipitate or remove most of the heavy metals and pollutants. However, due to the change in concentration, the chemical substances added in the conventional process will not react completely, which leads to fluctuation of the wasterwater treatment effect. For example, if the treated wastewater needs to be reused with UF or RO membrane technology, the PAC/PAM added during the coagulation and precipitation process will also cause serious pollution to the subsequent membrane filtration.
The TUF Tubular Membrane of Jiarong Technology has a wide flow channel and high flux, so it can be treated directly after the coagulation of the wastewater and obtain stable and effluent quality. If it is necessary to further zero discharge, Jiarong DTRO high concentration membrane technology can further concentrate the wastewater, entering the evaporation unit to achieve zero discharge of wastewater.
Main technical features of Jiarong Technology desulfurization wastewater advanced treatment process：
The water quality of the product is high and can be reused directly;
Reduces the use of chemical additives;
Small footprint, modular, economical investment;
Zero water discharge can be realized.
Jiarong Desulfurization Wastewater Treatment System：
Jiarong Technology can provide customers with TUF Tubular Membrane hardness removal system and DT/ST High Concentration Membrane System to achieve a modular design with stable quality and rapid delivery.
The main design parameters:
TUF tubular membrane removal hard system
Operating pressure: 1.5bar-7.0bar
Membrane flux: 100-150 LMH（L/m2.h）
Energy consumption: 2.0-2.5 KWH/ton water
Product water turbidity: ≤ 0.2NTU
Water recovery rate: ≥ 95%
DT/ST High concentration menbrane system
Operating pressure: 35bar-90bar
Membrane flux:10-20 LMH（L/m2.h）
Energy consumption: 3.5-4.5 KWH/ton water
Raw water TDS: 30-40g/L
Concentrate TDS: ≥ 120g/L
Recovery rate: ≥ 70%
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