Industrial Wastewater Treatment and Alkaline Recovery Electrodialysis Unit

루브리는 확산 투석 기술에 능숙하며, 맞춤형 솔루션을 설계하고 구현하는 데 능숙하여 고객에게 포괄적이고 친환경적인 생산 솔루션을 제공합니다.

루브리는 양극성 막 전기투석 기술에 능숙하며, 맞춤형 솔루션을 설계하고 구현하는 데 능숙하여 고객에게 포괄적인 친환경적이고 깨끗한 생산 계획을 제공합니다.

전기투석의 핵심 원리전기투석 기술의 핵심은 전기장과 선택적 막 기술의 결합에 있으며, 구체적인 원리는 크게 두 부분으로 나뉩니다.1. 직류 전기장의 구동 효과직류 전기장의 작용으로 용액 속의 음이온과 양이온은 방향성을 가지고 이동합니다. 양이온은 음극 쪽으로 이동하고, 음이온은 양극 쪽으로 이동합니다.2. 이온 교환막의 선택적 여과 효과이 시스템에서는 이온 분리를 위해 두 종류의 이온 교환막이 사용됩니다.양이온 교환막: 양이온(예: Na+)만 통과시킵니다.+, 칼슘2+마그네슘2+음이온은 차단하면서 통과시킵니다.음이온 교환막: 음이온(예: Cl⁻)만 통과시킵니다.-, 그래서42-양이온을 차단하면서 통과시킵니다.

This technology is based on the principle of bipolar membrane electrodialysis. Under the action of a direct current electric field, it utilizes bipolar membranes to efficiently dissociate water molecules into hydrogen ions and hydroxide ions. This process then directionally converts salts in electroplating wastewater (such as sodium chloride, sodium sulfate, etc.) into corresponding acids (such as hydrochloric acid, sulfuric acid) and alkalis (such as sodium hydroxide), achieving the dual objectives of wastewater purification and resource recovery.

Core Principle of Electrodialysis The core of electrodialysis technology lies in the combination of electric field and selective membrane technology. Its specific principle is divided into two parts: Driving Effect of DC Electric Field and Concentration GradientUnder the action of a DC electric field or concentration gradient, anions and cations in the solution move directionally: cations migrate toward the negative electrode, while anions migrate toward the positive electrode; solutes move from high-concentration solutions to low-concentration ones. Selective Sieving Effect of Ion Exchange MembranesTwo types of ion exchange membranes are used in the system to achieve ion separation: Cation Exchange Membrane: Only allows cations (e.g., Na⁺, Ca²⁺, Mg²⁺) to pass through, while blocking anions. Anion Exchange Membrane: Only allows anions (e.g., Cl⁻, SO₄²⁻) to pass through, while blocking cations.

Core Principle of Bipolar Membrane Electrodialysis (BPED) The core of BPED technology lies in the combination of electric field, selective membrane technology, and the unique water-splitting capability of bipolar membranes. 1. Driving Effect of DC Electric FieldUnder a DC electric field, ions migrate directionally: cations move toward the cathode, while anions move toward the anode. 2. Membrane Functions Bipolar Membrane (BPM): Splits water ( H2​O ) into H+ and OH− ions under the electric field, providing a source for acid and base production. Cation Exchange Membrane (CEM): Selectively allows cations to pass through. Anion Exchange Membrane (AEM): Selectively allows anions to pass through. By arranging these membranes alternately, salts can be converted into corresponding acids and bases.