raw sludge meaning in Hindi

• अनुपचारित आपंक • अनुपचारितआपंक

raw: कच्चा घाव बिना
sludge: कीचड़ गाद तलछट पंक

The " Chicago Tribune " reported that BP is a major polluter, dumping thousands of pounds of raw sludge into the lake every day from its Whiting, Indiana, oil refinery.